A double-decker bus that crashed into a railway bridge in Norbiton had made a "wrong turn", the director of buses for Transport for London said. Mike Weston added:
At around 13:00 an out of service route 131 double deck bus, operated by London United, hit a rail bridge on Coombe Road near Norbiton Station after taking a wrong turn.
The bridge was not damaged and rail services are unaffected. There were no injuries and the incident will be fully investigated.
More top news
More than 200 people are expected at London's first Muslim Youth Festival which will look at stopping the radicalisation of young Britons.
A report by a London university has found that chief police officers use "predatory" behaviour towards junior staff.
A man from north London has been jailed for 27 years for owning guns and conspiring to supply drugs. Two others were also jailed.