South Florida authorities are searching for what they are calling a serial bank robber.

A Palm Beach Sheriff's release said a suspect struck robbed a Boca Raton bank Friday. He walked up to a teller and demanded money.

He's described as being in his mid 30s to early 40s, with a medium build. He's about 5-feet, 10-inches and was wearing blue jeans and a green-striped short sleeve shirt.

Authorities suspect him in eight other bank robberies in Delray Beach and Boca Raton.

Anyone with information should call Crime Stoppers at 1-800-458-TIPS.