State police are searching for a Clifton Park woman who has been missing since Sunday morning. Dale Gleason, 64, was last seen at a summer camp near Friends Lake in Chestertown, according to police. She may be driving a 2011 grey/silver Acura RDX with New York registration FFM-7477. Gleason was also under medical care recently, police said in a release. If anyone sees Gleason, they are asked to call state police dispatchers at 583-7000.