A Westport woman faces a DUI charge following a Friday night incident.

Karen Backus, 51, of Davenport Avenue, was charged with operating under the influence of alcohol, operating an unregistered motor vehicle and improper stop/turn signal, police said.

Officers were dispatched about 8 p.m. Friday to check on a report that a person had left a residence while under the influence of alcohol, according to the report.

Officers found Backus' vehicle on North Avenue, where they was stopped it. Backus failed a field sobriety test and was placed under arrest, police said.

Backus posted a $500 bond and is scheduled to appear April 9 in Norwalk Superior Court.