A pensioner is fighting for his life after going into cardiac arrest while chasing a suspected burglar through east London.
Police were called to East Ham High Street at 8.29pm on Friday after reports of a 70-year-old man collapsed in the street.
The London Ambulance Service (LAS) took the man to hospital in a critical condition. Police are awaiting a further update of his condition.
A Met Police spokesman said officers are investigating what happened in the moments before the pensioner fell ill.
"Prior to the man being found collapsed in the street, it is believed he was chasing a suspect, possibly thought to have attempted a burglary at a residential property in Plashet Grove, E6," he added.
"The man remains in hospital where we await a further update on his condition."
No arrests have been made and police enquiries continue.
