The operators of one affected line, the Bolt Bus, didn't respond to a request for comment.

WSJ: New Bus Limits Sought

He then became foreign minister at Mr Chavez's request, prompting criticisms from some quarters that he lacked a university education as a bus driver who left school without qualifications.

BBC: Profile: Nicolas Maduro

I've been given details of a Freedom of Information (FOI) request by the BBC's FOI unit about the types and number of complaints being made against bus drivers in London.

BBC: Complaints against London's bus drivers on the rise

Investigators were there at the request of Children and Family Services to investigate a complaint that Castro left a child on a school bus while he was working as a school bus driver, Flask said.

CNN: SHARE THIS

The data was obtained through a Freedom of Information request made by Tom Kearney, a cyclist who suffered life-threatening injuries after being struck by a bus in Oxford Street in December 2009.

BBC: London buses 'hit two pedestrians or cyclists a day'