Police are searching for a man who allegedly groped a girl on a subway platform in Queens Friday morning. 

The 12-year-old girl was standing on a southbound 7 train platform at the Woodside station in Queens at about 7:40 a.m. when the man allegedly approached her from behind and groped her before boarding a train, police said. 

The suspect is described as being about 28 to 35 years old, about 5-foot-4 to 5-foot-6, and wearing a red messenger-type bag. 

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