Sky News has filmed pictures from the rear of the Nairobi shopping mall showing the devastating aftermath of last Saturday's terror attack.
Hundreds of tons of masonry, debris and metal fell down several floors after part of the roof collapsed where the car park was.
The scene has been described as a 'mini Ground Zero' by one forensic expert who spoke to Sky News.
It comes as the Foreign Office said a sixth British national had been confirmed dead following the atrocity in Kenya. The figure had earlier been lowered to five.
Burned out cars were filmed hanging precariously over the edge of the pit and the tin roof of the supermarket atrium was severely damaged.
Below the hole in the roof was where a cookery competition was taking place involving adults and children when the gunmen began shooting at them.
 The air conditioning system on the left of the picture was burnt out
 The air conditioning system on the left of the picture was burnt out  Some people said the roof collapse was caused by the terrorists starting a fire, others said it was the military who detonated explosives or fired rocket propelled grenades that set off the blaze.
The pictures were filmed from a private property of resident Sukhbir Singh who told Sky News he heard "really loud blasts" and "several gunshots".
He said at the part of the roof which has now fallen down he saw two or three gunmen opening fire towards children, adding "it was really really bad".
He went on: "They just came in and sprayed bullets without talking."
 Sky News filmed from the rear of the shopping centre
 Sky News filmed from the rear of the shopping centre  Meanwhile, new footage from the Kenyan Red Cross shows the organisation's staff helping shoppers as they emerged from Westgate Mall during last week's terror attack.
The video was filmed on September 21 - the first day of the siege and just hours after gunmen attacked the mall with assault rifles and grenades.
The organisation's secretary general, Abbas Gullet, is a prominent figure in the footage, not just overseeing the medical care of the injured, but also providing direct medical assistance himself at times.
Mr Gullet's team of medics regularly risked their own lives to bring people out of the shopping centre.
 Resident Sukhbir Singh witnessed the terror attack
 Resident Sukhbir Singh witnessed the terror attack  One man can be seen with is hand on a body covered with a red blanket weeping, while medical teams look on.
Stretchers were repeatedly run in and out of the mall despite the ongoing attack by gunmen.
The Red Cross also helped to transport those who lost their lives in the deadly assault.
Seven days after the attack which left at least 67 people dead, there is still no clear word on the fate of dozens who have been reported missing and no details on the gunmen who carried it out.
 Shoppers were told to leave the mall with their hands up
 Shoppers were told to leave the mall with their hands up  Al Shabaab said it carried out the massacre to punish Kenya for sending its troops into Somalia to fight the al Qaeda-linked militant group that had seized large parts of that country for years before being dislodged from the capital, Mogadishu.
The Kenyan Red Cross has said 59 people are unaccounted for, raising fears of bodies in the debris.
President Uhuru Kenyatta's government is facing tough questions after the reported leaking of an intelligence report dated September 13 which warned of an elevated risk and which some top officials said was treated too casually.
Senior security officials told the AFP news agency on condition of anonymity that an intelligence report warning of an attack had been sent to the treasury, interior, foreign affairs and defence ministers, as well as the army chief.
"Briefs were made to them of increasing threat of terrorism and of plans to launch simultaneous attacks in Nairobi and Mombasa around September 13 and 20, 2013," according to the report, quoted in the Nation newspaper.
The report also reportedly said Israel, which has close security ties with Kenya, had warned of plans to attack Israeli property in September, a month which included several Jewish holidays.
 The epicentre was 90 miles west of Khuzdar
 The epicentre was 90 miles west of Khuzdar   People visit an island formed by Tuesday's tremor
 People visit an island formed by Tuesday's tremor   Mr Rouhani's supporters outnumbered his opponents as he arrived home
 Mr Rouhani's supporters outnumbered his opponents as he arrived home   Surrounded by tight security, Mr Rouhani waved to crowds at Tehran airport
 Surrounded by tight security, Mr Rouhani waved to crowds at Tehran airport   Around 60 hardliners waved anti-US placards at Mehrabad Airport
 Around 60 hardliners waved anti-US placards at Mehrabad Airport   President Hassan Rouhani spoke to US President Barack Obama by phone
 President Hassan Rouhani spoke to US President Barack Obama by phone   Tesco is no longer selling the doll. Pic: Tesco.com
 Tesco is no longer selling the doll. Pic: Tesco.com   Asda and Tesco apologised for the Halloween costumes
 Asda and Tesco apologised for the Halloween costumes   Niall Saville and his wife Moon Hee Kang who died in the attack
 Niall Saville and his wife Moon Hee Kang who died in the attack   Security officials enter the mall to search for more evidence
 Security officials enter the mall to search for more evidence   Miraculous tales of survival have emerged since the attack
 Miraculous tales of survival have emerged since the attack   Stan Collymore was among those expressing anger over the Asda product
 Stan Collymore was among those expressing anger over the Asda product   Asda was quick to respond to the criticism on Twitter
 Asda was quick to respond to the criticism on Twitter   April's body has never been found
 April's body has never been found  
 Flowers from April's grandparents
 Flowers from April's grandparents   Smoke rises from the Westgate mall in Nairobi
 Smoke rises from the Westgate mall in Nairobi   People queue up to give blood
 People queue up to give blood   Kenyan troops stormed the shopping complex
 Kenyan troops stormed the shopping complex   Ed Miliband insists it is time to "reset the market"
 Ed Miliband insists it is time to "reset the market"   Energy firms argue they need money to overhaul UK power stations
 Energy firms argue they need money to overhaul UK power stations  
 April's parents, Paul and Coral Jones made the sponsorship decision
 April's parents, Paul and Coral Jones made the sponsorship decision   Mark Bridger is serving a whole life tariff for April's murder
 Mark Bridger is serving a whole life tariff for April's murder   Smoke seen billowing from the shopping complex
 Smoke seen billowing from the shopping complex   Mr Langdon at a conference in 2012
 Mr Langdon at a conference in 2012   Ms Yavuz meeting Bill Clinton
 Ms Yavuz meeting Bill Clinton   The gunmen killed at least 62 shoppers and staff during the attack
 The gunmen killed at least 62 shoppers and staff during the attack   Samantha Lewthwaite is known to be in East Africa
 Samantha Lewthwaite is known to be in East Africa   Kenya's Foreign Minister Amina Mohamed spoke to the PBS Newshour programme
 Kenya's Foreign Minister Amina Mohamed spoke to the PBS Newshour programme   Victims: Ross Langdon, Eliv Yavus and eight-year-old Jenah Bawa
 Victims: Ross Langdon, Eliv Yavus and eight-year-old Jenah Bawa   Kenyan forces at the shopping centre early on Tuesday
 Kenyan forces at the shopping centre early on Tuesday   Bodies arrive at the city morgue
 Bodies arrive at the city morgue  
 Smoke is seen rising from the shopping centre
 Smoke is seen rising from the shopping centre   Ed Miliband and Justine arriving at the hall before his conference
 Ed Miliband and Justine arriving at the hall before his conference   Ed Miliband with wife Justine at their hotel before his speech
 Ed Miliband with wife Justine at their hotel before his speech   Soldiers are moving in on the terrorists at the shopping centre
 Soldiers are moving in on the terrorists at the shopping centre   Harris, 83, said nothing as he walked into court
 Harris, 83, said nothing as he walked into court   Esme's safe return is thought to be as a direct result of media appeals
 Esme's safe return is thought to be as a direct result of media appeals   Aerial view of the smoke rising from the shopping centre
 Aerial view of the smoke rising from the shopping centre   Mr Langdon and Eliv Yavus. Pic: Windgrove: Life on the Edge blog
 Mr Langdon and Eliv Yavus. Pic: Windgrove: Life on the Edge blog   Kenyan troops take cover as they await developments
 Kenyan troops take cover as they await developments   Troops make their way to the shopping mall
 Troops make their way to the shopping mall   Sky's Stuart Ramsay reporting on the siege
 Sky's Stuart Ramsay reporting on the siege  


