(Portland, OR) -- More than 110 people were arrested over Black Friday weekend as Portland Police conducted retail theft missions. Portland officers teamed up with Multnomah County Sheriff's deputies, Gresham Police and Port of Portland Police. They conducted undercover missions at malls including Gresham Station, Mall 205 and Cascade Station. Besides the arrests, nine stolen vehicles were recovered and more than 10-thousand dollars' worth of stolen merchandise was seized.