Police have released a new CCTV image of a jogger who appeared to push a woman into the path of a bus.
Footage of the incident showed a man running along Putney Bridge in west London and appearing to shove the 33-year-old into the road.
Two men, both aged 41, have previously been arrested but were later released without further action.
The Met said officers were continuing "to work through the information received to identify the man".
The woman was knocked into the road as she was walking across Putney Bridge at about 07:40 BST on 5 May.
The new image of the jogger was captured on the Number 430 bus which narrowly avoided her.
About 15 minutes later the jogger returned to run back across the bridge.
The woman, who received minor injuries, tried to speak to him but he did not acknowledge her and carried on jogging.
He is described as a white man, aged in his 30s, with brown eyes and short brown hair.
Det Sgt Chris Griffith appealed for anyone who provided officers with a name of the potential suspect to contact police again "so we can fully follow up those lines of enquiry".