(Tigard, OR) -- Police are investigating a string of home burglaries targeting Asian Americans. Tigard Police are investigating four burglaries, two occurred in Beaverton and four in Washington County. Detectives say the suspects used similar methods to break into the homes. Police are sharing information with other law enforcement in the area and at the federal level. The suspects used a parked car to surveil the victim's house to know when residents are away. They're asking community members to report suspicious vehicles.