Police are still searching for the occupants of the other car
The son of a man killed in a fatal hit-and-run earlier this week has said he is "heartbroken".
On Thursday morning (April 30) at around 6am, a white Mercedes collided with a Ford B-Max on the junction between Heathway and Oxlow Lane in Dagenham, Greater London.
The occupants of the Mercedes fled the scene, and police have now released images of men they'd like to speak to in regards to the incident.
The driver of the Ford B-Max - a 57-year-old man - sadly died at the scene.
His son, Ben Hollis, has revealed on Twitter about how his dad was involved in the accident and how he was "on his way to work".
Police want to speak to this man in connection with the fatal collision (Image: Metropolitan Police)
Tweeting an image of one of the men the police want to speak to, Ben said: "My Dad was a postman who was killed in a hit and run yesterday in Dagenham.
"The police need to identify and speak to this man, please help and share/retweet."
In another tweet, he said: "He was a postal worker just on his way to work, we are all absolutely heartbroken
"If anyone knows anything, we beg you to contact the police as soon as possible."
Officers would like to speak to this man (Image: Metropolitan Police)
Police have released CCTV footage of a man leaving the scene, as well as an image of another man who they wish to speak to.
Detective Superintendent Andy Cox, of the Met Police's Road and Transport Policing Command, said: "Identifying and tracing the man pictured, as well as the man in the previous appeal, is a matter of high priority and we urge anyone who recognises either man, or knows their whereabouts, to contact police immediately.
"A 57-year-old man died as a result of this collision, and my team of experienced detectives are determined to establish the circumstances of the crash, and achieve justice for his grieving family."
Anyone who can assist is asked to call the incident room on 0208 5974874, call 101 or tweet @MetCC and quote CAD957/30Apr.
Alternatively, you should contact the independent charity Crimestoppers 100% anonymously on 0800 555 111.