POLICE are appealing for information on a man wanted in connection with a serious sexual assault on a schoolgirl.

The girl was assaulted in an alleyway that runs by Pine Avenue in West Wickham at 3.30pm on March 19.

She was walking through the alleyway when a man approached her from behind and grabbed her before assaulting her.

The white-skinned suspect was wearing a black jacket, black trousers, gloves and a black full-face motorcycle helmet with red stripes.

He fled the scene on a silver motorbike which was parked nearby.

Police have released an image of the man's motorcycle helmet, as described by the victim.

Anyone with any information should contact Bromley police’s Sapphire Unit on 020 8284 8775 or Crimestoppers anonymously on 0800 555 111.