TUSCALOOSA, Ala. (AP) - Four University of Alabama football players have been suspended indefinitely following their arrests on charges including credit card fraud and robbery.

Officials say running back Brent Calloway was arrested Monday on a charge of fraudulent use of a credit card. Linebackers D.J. Pettway and Tyler Hayes were charged with second-degree robbery. Defensive back Eddie Williams was charged with both fraudulent use of a credit card and second-degree robbery.

All have been released from jail on bond ranging from $5,000 to $65,000. Court documents show Williams and Hayes have confessed to the robberies, and Calloway admitted to using a stolen debit card.

Court documents say that two students were knocked unconscious in the robberies early Monday morning.