Ariz. Bank Robber Asks For $20, $40, $60 Bills

GILBERT, Ariz. (CBS/KPHO/AP) If you've seen this man, or a $60 bill, you should call the police.

Investigators in the Phoenix area are looking for this bank robbery suspect they've dubbed the "$60 Bill Bandit" because he once asked a teller for $40 and $60 bills - denominations that aren't printed.

According to CBS affiliate KPHO, the robber is wanted in connection with four bank robberies in four cities since October.

The most recent holdup was Dec. 23 when the suspect walked into a Gilbert, Ariz. Bank of America and handed the teller a note saying he was armed and wanted money.

The teller gave him an unknown amount of cash - presumably not including any 40's or 60's.