A police chase through two northeast Iowa counties has authorities searching for a missing woman. The chase started east of Waterloo last night when authorities discovered a strange vehicle parked at a convenience store in Raymond. The driver — later identified as Lynn LaMmasters — took off and was chased by sheriff’s deputies into Bremer County. Authorities say LaMasters stopped the car near Readlyn and jumped into a ditch. When deputies caught up with LaMasters, they found him armed with a knife and suffering from self-inflicted stab wounds. LaMasters is being treated today at a Waterloo hospital. Officials say the car LaMasters was driving belonged to his girlfriend — 43-year-old Patricia Rapacki of Jesup, who had some personal belongings inside. Authorities say Rapacki hasn’t been seen by her family since December 26th. The search for her is now underway.