A woman has been arrested on suspicion of making racist comments after police examined video footage shot on a bus.

The 34-year-old was arrested on Tuesday at an address in Hackney, east London, on suspicion of a racially aggravated public order offence, police said.

It comes after footage of a black woman in a distressed state proclaiming her African heritage and disparaging white people was uploaded to YouTube.

She was released on bail - on condition she does not use any London bus.

'Passenger's recording'

The Metropolitan Police said they were trying to determine when the footage was filmed.

A police spokesman said: "On Monday August 20 MPS officers began to assess footage of a woman that was brought to our attention.

"It shows a woman making comments on a bus. Officers are continuing to try and establish when and where the footage was taken."

Police said the woman had been taken to an east London police station after her arrest.

Thousands of people have watched the footage, which was apparently recorded by another passenger on the bus.