WASHINGTON (Reuters) - Republican U.S. Senator Mike Crapo of Idaho was arrested early on Sunday in a Washington suburb and charged with driving under the influence, police said.

An officer stopped Crapo in Alexandria, Virginia, after spotting a vehicle running a red traffic signal, city police said in a statement.

The senior senator from Idaho was "arrested after failing several field sobriety tests," it said.

Crapo was alone in his own car. His blood alcohol content was 0.11 percent, the statement said, above Virginia's maximum of 0.08 percent.

Crapo, 61, was taken into custody without incident and released on an unsecured bond of $1,000. He is due to appear in court on January 4.

Crapo said in a statement that he was "deeply sorry" for the incident.

"I made a mistake for which I apologize to my family, my Idaho constituents and any others who have put their trust in me," he said.

"I accept total responsibility and will deal with whatever penalty comes my way in this matter."

Crapo has served in the U.S. Senate since 1999 after six years in the U.S. House of Representatives representing Idaho's 2nd district. He was re-elected to the Senate in 2010. Continued...