A 19-year-old woman and another were critically injured after London double decker bus crashed into a tree in south London.
Eye witnesses say that the bus collided with a tree while it was swerving to avoid collision with another vehicle.
Police, ambulance and fire crews were on the scene of the crash, which took place in Kennington Road.
A man with a bloodied head was seen being put on to an ambulance and emergency crews were using a cherry picker to gain access to the back of the bus.
The front of the bus, a number 59 heading to King’s Cross, was crumpled against the tree near the Ship pub.
“A number of people have been injured and are being taken care of by paramedics.”
Metropolitan Police traffic sergeant Richard Sutton confirmed two people were critically injured, including the 19-year-old woman.
Two others were seriously hurt, he added. Two off-duty police officers were also injured, one with a “heavily suspected” broken arm.
Fire crews had to use ladders to evacuate people and seats from the top of the back of the bus.
Transport for London’s director for buses, Mike Weston, said the bus “swerved to avoid another vehicle and struck a tree”.
He said: “Our first concern is, of course, for the driver, passengers and others involved in this incident and we can confirm the emergency services are in attendance.
“There will be a thorough investigation into this incident as a matter of urgency.”
Accidents involving London buses are very rare.