Stamford police are asking for the public's help in finding the teens responsible for randomly assaulting and robbing people in four separate incidents on Wednesday.

Investigators say the robberies happened near the corner of East Main Street and Lockwood Avenue over about a five-hour span.

Police say the teens have been coming up from behind on their bikes and attacking people who are walking down the sidewalk. Then they are taking the victims' cellphones, money and anything in their pockets.

Anyone with information is asked to call Stamford police.