Former Lost star Matthew Fox was arrested on suspicion of DUI in the early hours of Friday morning, RadarOnline.com has confirmed.

The 45-year-old actor was taken into custody by police in Bend, Oregon, at 3:23 a.m. on suspicion of driving under the influence while heading to a fast food restaurant for a late night snack.

Matthew Fox is being sued for allegedly punching a woman last month, and RadarOnline.com has the court documents.

The lawsuit, filed in Ohio, claims that the Lost actor assaulted Heather Bormann after he tried to get on the party bus she was driving on August 28.

DOCUMENTS: Matthew Fox Being Sued For Assault

The Cleveland, Ohio woman who claims Matthew Fox repeatedly punched her last week has filed an assault complaint against the Lost star and prosecutors must now decide whether they intend to press charges against the actor and prosecutors will ultimately decide whether to press charges against the actor.

Regardless, Heather Bormann, 29, says she's going to file a civil suit against Fox.

"He hit me and he should pay the consequences of assaulting a woman,"  Bormann told Fox 8 Cleveland after filling out a statement about the August 28 incident at the Cleveland City Prosecutor's Office Tuesday. "Right now, it's considered a civil matter and that's why he was ultimately released Sunday morning, so I would have to press charges.”

Matthew Fox is accused of allegedly assaulting a 29-year-old woman in Cleveland, Ohio over the weekend, and RadarOnline.com has all the details.

Cleveland Division of Police Public Information Officer, Melissa Dawson, confirmed it was the Lost actor that was involved in the altercation, which occurred in the early morning hours of August 28, and was reported at 1:31 a.m.

“Victim states named suspect tried to board a private party bus that she was driving,” the offense report states. “Victim got up from the drivers seat and blocked the entrance.