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.

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,

Sources tell ABC News that authorities have found a "vehicle of interest" outside Minneapolis, along with "personal items" believed to be associated with him.

Democratic Sen. John Hoffman, his wife, and House Democratic leader Melissa Hortman were injured in what the governor describes as targeted shootings.

Authorities are searching for a 57-year-old man after two Democratic lawmakers and their spouses were shot. State Rep. Melissa Hortman and her husband were killed.

Minnesota Gov. Tim Walz said the killing of Rep. Melissa Hortman and wounding of Sen. John Hoffman appeared to be a "politically motivated assassination."