Halifax police are asking for help finding a man suspected of masturbating behind a building in the middle of the night.

Halifax Regional Police say a man wearing a black hoodie and grey gym pants was caught on camera behind a building on the 7100 block of Andrew Street at 3:40 a.m. last Friday.

He was seen trying to climb to a second-floor balcony, police say, but when he failed to do so he went to the building’s back entrance, pulled down his pants, and masturbated next to the back door.

The incident was reported the next day when it was seen on video surveillance footage, police say.

The suspect is described as a thin white man in his twenties.

Police ask anyone with information about the incident to call police at 902-490-5016 or Crime Stoppers at 1-800-222-TIPS.