CCTV (see video) released by the Met Police shows a woman being pushed in front of an oncoming double-decker bus.

The victim, in her 60s, had a "verbal exchange" with another woman inside a Tesco in Pimlico on 29 May last year.

She left the shop and was barged over by the woman, who was with two children at the time of the assault.

The Met have issued the images in order to trace the woman involved.

The victim suffered bruising and a cut to her head.

I'm surprised that the perpetrator wasn't stopped by members of the public.

I'm surprised that the perpetrator wasn't stopped by members of the public.

Having seen the pictures and CCTV captures I think that I've detected a common factor in most cases.

Detective Constable Samantha Edwards who leads the investigation said: "This was an unprovoked assault which could have had much more serious consequences.

"A number of enquiries have been undertaken to locate the person responsible.

"If you recognise this woman I would ask you to contact police immediately.

"It goes without saying that the victim has been deeply affected emotionally by this whole incident."

Please contact the Serious Crime Unit based at Westminster on 101 or tweet @MetCC. You can also call Crimestoppers anonymously on 0800 555 111 if you don't wish to speak to officers directly.

Having seen the pictures and CCTV captures I think that I've detected a common factor in most cases.