Bethnal Green residents have had to sleep in a school as experts attempted to defuse an unexploded bomb.
Military personnel worked through the night to defuse the device, believed to have been dropped by German aircraft during the Second World War.
After the bomb was discovered on Monday, August 10, the area was evacuated and surrounding roads were closed as police and firefighters implemented a 100m exclusion zone. This was later doubled in size.
A Tower Hamlets Council spokesman said on Monday: “After discussions with the Army, the London Fire Brigade, and the Metropolitan Police, we have agreed to extend to exclusion zone to 200m."
Some families spent Monday night in a Rest Centre at the Bethnal Green Academy where beds, food, drinks, and wash bags were provided.
Experts from the Royal Logistics Corps arrived on the scene on Monday afternoon to stabilise and defuse the bomb, which is thought to have been dropped on east London during bombing raids in the early 1940s but failed to detonate.
The bomb is believed to have lain buried, undisturbed deep in the ground for 70 years but was unearthed by construction workers working on a building in Temple Street.
An Army spokesperson said: “We can confirm that a specialist military bomb disposal team from 11 EOD Regiment, Royal Logistics Corps are on site in Bethnal Green and are assisting the police with the ongoing incident involving a Second World War German aircraft bomb that was discovered earlier today.
As with previous incidents, it is important that people follow any advice given by the police.
“The military EOD teams have extensive experience with these situations, having operated in Iraq, Afghanistan and Northern Ireland.”
An update on the bomb is expected at around noon on Tuesday, August 11.
Earlier this year Army officers detonated similar devices discovered in Wembley and Bermondsey.