The Mayor of London, Boris Johnson, has had what was described as a "near-miss" with a lorry while riding his bicycle in east London.

The incident, caught on a private security camera, happened as the mayor cycled in a street in Limehouse.

As a lorry overtook him, its back doors flew open and hooked the windscreen of a parked car, dragging it for several yards before smashing into another.

The BBC's Warren Nettleford reports.