The Boston Police Department is looking for a man suspected of exposing himself and touching himself at a bus stop.

A concerned citizen sent police images of a man standing at a bus stop at 835 Huntington Ave., which the resident said is the usual spot of concern. In the photos the man is wearing a blue knit cap, gray pants, black and white sneakers, a red winter coat with black trim, and he sports a distinctive large and dark mustache.

“The suspect has been observed exposing and touching himself in front of children as they wait for their school bus,” a Boston Police Department notice states. “Following the incidents, the individual is seen leaving the area on a scooter shortly after the children board the bus.”

BPD asks anyone with any information about the man to call detectives at 617-343-4275 or to provide information anonymously through the CrimeStoppers tip line by calling 1-800-494-TIPS (8477), by texting the word “TIP” to CRIME (27463), or online at Police.Boston.gov/crimestoppers/.