Frederick County Fire Chief Tim Welsh has been placed on administrative leave until an internal investigation can be completed.

Sheriff's deputies arrested Welsh early Monday morning for driving while intoxicated. Authorities say, Welsh was driving his personal car when he was caught speeding down Northwestern Pike.

Before pulling him over, the deputy says he noticed Welsh crossing the center line. Welsh failed the sobriety test, was arrested and taken to Northwestern Regional Adult Detention Center. He was released soon after.

Welsh's court date is set for December 17th. Dennis Linaburg, the deputy chief and fire marshal tells TV3 that he will be the acting chief until further notice.

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