Police say they're searching for a man wanted for sexually harassing a woman on the Q train on June 2.

They say it happened on a southbound train near the Stillwell Avenue Subway Station, where a 23-year-old woman was awakened by an unknown man when he put his hand on her groin underneath her clothing.

Police say the victim screamed and the suspect left the train.

Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS.