A woman was raped in an early-morning attack in Isleworth.
The 59-year-old was found in distress by a group of friends walking along James Street, Isleworth at about 3.40am.
As the group approached Inwood Park they heard "sounds that suggested someone needed help", according to police.
They climbed in and found the woman, who told them she had been raped.
Detectives today released CCTV footage of a man they want to talk to in connection with the attack, which took place in the early hours of Sunday, July 10.
A police spokesman said: "Detectives have recovered CCTV from the nearby High Street, which shows the 59-year-old woman heading inside a cab office.
"At approximately 1.15am, CCTV shows her leaving the cab office and walking along Hanworth Road towards the park with an unknown man.
"The man is described as approximately 6ft tall, clean shaven with short dark hair."
Anyone with information should call police on 101 or Crimestoppers anonymously on 0800 555 111.
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