A 15-year-old girl was left terrified after a serial flasher indecently exposed himself in broad daylight.

The shocked teenager was walking her family dog in the park by Onslow Gardens, South Woodford, at 3.30pm on Friday when the man approached.

Detective Inspector Andy Kelly appealed for members of the public to come forward with information before the pervert strikes again.

He said: “Police helicopters were used to search for him immediately but unfortunately didn’t find him. Local residents say that this isn’t the first flashing incident in the area.”

The man is described as white and aged between 20 and 30-years-old.

Call Crimestoppers on 0800 555 111 with any information.

• Have you seen the man? Call the newsdesk on 8498 3460.