Edmonton MP Peter Goldring withdrew from the Conservative caucus Monday.
A government source said Goldring is leaving the caucus voluntarily due to police charges he is facing.
"The member has voluntarily withdrawn from our caucus while the charges are resolved, because our government takes drinking and driving very seriously. As the matter is before the courts, we can't comment further," the source said.
The exact nature of the charges were not clear Monday afternoon. Edmonton police would not comment on whether charges have been laid against Goldring.
Goldring was elected in the riding of Edmonton East in 1997.
More to come.