A man is fighting for life today after being attacked in the street.
The 22-year-old is in critical condition in hospital after being found with serious head injuries.
Scotland Yard said officers were alerted at about 10.45 last night to an incident in Downing Road, Dagenham, east London.
The victim, a local man, was found near the junction with Darcy Gardens and taken to a hospital in Essex.
A 22-year-old man was arrested at the scene on suspicion of assault and is in custody at an east London police station.
Detectives appealed for anyone who may have seen an altercation or anything suspicious to come forward.
– Acting Detective Inspector Perry Benton, Homicide and Serious Crime Command
It is essential that anyone who may be able to assist the investigation does come forward. They may be able to help us piece together the full circumstances of the incident which has left this man fighting for his life.
Anyone who could help was asked to call the incident room at Barking on 020-8345 3775, or if wishing to remain anonymous Crimestoppers on 0800 555 111.