Authorities have expanded their search for Minnesota lawmaker shooting suspect Vance Boelter to Sibley County, where they found his vehicle Sunday morning. Boelter has been named a suspect in the assassinations of Rep.

By mid-afternoon Sunday, Vance Boelter’s abandoned car in Faxon Township was put on a flatbed tow truck and removed from the scene. The license plate matches the one listed in a “be on the lookout” alert issued in South Dakota by law enforcement in connection with the search for Boelter.

The manhunt for the man suspected of shooting two Minnesota lawmakers and their spouses continues into Sunday, with sources telling ABC affiliate KSTP that his wife has been detained for questioning.

A massive law enforcement operation is ongoing as authorities search for Vance Boelter, the 57-year-old man suspected of the politically-motivated killing of Minnesota Rep. Melissa Hortman and her husband,

"MN Shooter's suspects vehicle located near MN HWY 25 and 301 Ave. in Faxon TWP, Sibley County," says the alert.

The Minnesota Department of Public Safety is holding a news conference on the search for Vance Boelter from the State Emergency Operations Center in Blaine