TULSA, Oklahoma - U.S. Marshals say they're looking for a known gang member right now who could be armed and dangerous.

Convicted robber Anthony Ross, who's also known at Mista or Lil Hands, is their most wanted to suspect this Monday. He's wanted for violating his federal firearm probation and for forgery in Tulsa County.

If you know where Marshals can find Ross, call them at 1-866-4-WANTED.