charliesheenmug.jpgCharlie Sheen, 44, was arrested today in Aspen for assault against his wife Brooke Mueller - specifically, he was taken in for felony second degree assault, felony menacing and criminal mischief. He is being held without bond.

Sheen will be locked up until he sees a judge which might not be until Monday.

Police responded to a 911 call made at 8:34 am. When police arrived, the Two and a Half Men star was arrested. An ambulance arrived but did not transport anyone for treatment.

Reports say the couple had been living separately for three months - Mueller in a rented home in Colorado and Sheen in Los Angeles. The couple had reunited for the holidays, but apparently things turned bad and the couple was arguing in the early morning hours of Christmas morning.

UPDATE: Sheen has posted $8500 bail and has been released from the Pitkin County Jail in Aspen.

Check out our gallery of the couple in happier times ...