A man was charged on Tuesday after allegedly exposing himself near a children's playground in North London.
Scotland Yard said the incident happened in Barnard Park, Islington on Saturday evening.
They said a witness reported seeing a white male in a red jacket and dark bottoms expose himself in the park.
Officers attended the scene near Copenhagen Street and arrested a suspect.
He was subsequently charged with indecent exposure and remains in custody.
The Metropolitan Police are now appealing for anyone who was in the area and saw this incident to contact them.
A spokesman said: "Witnesses sought following exposure incident in Islington park.
"Police investigating an incident where a man exposed himself near to a children’s playground in Islington are appealing for witnesses.
"The incident happened at around 18:00hrs on Saturday, April 12 in Barnard Park, N1.
"A witness reported that a man, described as white wearing a red jacket and dark bottoms, had exposed himself in the park.
"Officers attended and the man was arrested and has subsequently been charged – he remains in custody.
"Officers are appealing for anyone who was in the area of the children’s playground in Barnard Park on Saturday evening and saw this incident to contact police."