A woman pedestrian was killed when a double decker bus crashed into a tree in central London.
A woman pedestrian was killed when a double decker bus crashed into a tree in central London.
Eighteen other people have been injured, four seriously, in the collision on Tower Bridge Road on Tuesday morning.
Eighteen other people have been injured, four seriously, in the collision on Tower Bridge Road at about 0945 BST.
The incident happened near the junction with Tanner Street as the bus travelled on the 188 route, which runs between Russell Square and North Greenwich.
The incident happened near the junction with Tanner Street as the bus travelled on the 188 route, which runs between Russell Square and North Greenwich.
Police said officers were currently speaking to the driver of the bus.
Police said officers were currently speaking to the driver of the bus.
A spokesman for the London Ambulance Service said its crews treated 18 people and four people with serious injuries were taken to hospital.
A spokesman for the London Ambulance Service said its crews treated 18 people and four people with serious injuries were taken to hospital.
He added they have suffered neck and back injuries.
A Metropolitan Police spokesman said: "One woman was pronounced dead at the scene.
A Metropolitan Police spokesman said: "One woman was pronounced dead at the scene.
"She has yet to be identified and next of kin informed. She is believed to have been a passer-by and not a passenger on the bus."
"She has yet to be identified and next of kin informed. She is believed to have been a passer-by and not a passenger on the bus."
Transport for London (TfL) said it had launched a full investigation into the crash which happened at about 0945 BST.
Transport for London (TfL) said it had launched a full investigation into the crash.
It said the bus was travelling north, out of central London to North Greenwich.
It said the bus was travelling north, out of central London to North Greenwich.
Emlyn Exon, of Anderson Travel coach hire in Tower Bridge Road, said the top deck of the bus had "pretty much caved in" at the front.
Emlyn Exon, of Anderson Travel coach hire in Tower Bridge Road, said the top deck of the bus had "pretty much caved in" at the front.
And Trevor Harris, web designer at Action Plus Photographic Sports Agency, which is a short distance from the scene, said: "It looked like there were some windows smashed and branches on the road."
And Trevor Harris, web designer at Action Plus Photographic Sports Agency, which is a short distance from the scene, said: "It looked like there were some windows smashed and branches on the road."
People were running out of the bus panicking Eye witness Charlie Fayinka
Charlie Fayinka, 28, who works nearby, said he saw the bus driver fainting shortly after the crash.
"I was outside about a minute after it happened," he said.
"People were running out of the bus panicking and I saw a man with an injury to his leg.
"The whole front of the bus is completely wrecked. The top windows are all broken completely."
Tower Bridge Road and several other roads in the vicinity are closed and motorists are urged to avoid the area.
Tower Bridge Road and several other roads in the vicinity are closed and motorists are urged to avoid the area.
Bus routes 1, 42 and 188 have been diverted.
Bus routes 1, 42 and 188 have been diverted.
The 188 is operated by the Travel London company which operates more than 30 bus routes in the London area.
The 188 is operated by the Travel London company which operates more than 30 bus routes in the London area.
A spokeswoman for transport company National Express, which is Travel London's parent company, said: "We have people on the scene who are working with the police to try to establish why this accident happened."
Are you in the area? Were you on the bus? Send your comments using the post form below, or text 61124:
Are you in the area? Were you on the bus? Send your comments using the post form below, or text 61124:
