MASON CITY, Iowa (AP) — Federal authorities believe a man suspected of robbing a credit union in Iowa with an assault rifle is the same man suspected of robbing banks in several states.

The FBI says the “AK-47 Bandit” robbed banks in California, Idaho and Washington in 2012 and a bank in Nebraska in 2014. The suspect carries an assault rifle similar to an AK-47 into the banks.

Authorities say a man entered the Iowa Heartland Credit Union in Mason City on Tuesday wearing a black ski mask. He was armed with an AK-47 and left with an undisclosed amount of money.

The FBI is offering up to $100,000 for information that leads to an arrest and conviction in connection with the shooting of a police officer during one of the robberies in California.