India, June 14 -- Law enforcement authorities said the gunman in Minnesota shooting, who attacked two US lawmakers and their spouses, was dressed as a police officer and escaped after exchanging fire with police who went to the residence of Melissa Hortman, the State Representative killed in the incident.

The suspect was still at large at the time of this report, reports said, citing officials.

Democratic state lawmaker Melissa Hortman and her husband were killed early Saturday, while a second lawmaker - John Hoffman - and his spouse were wounded in a separate attack, Minnesota Governor Tim Walz said.

Walz said it appeared to be a "politically motivated assassination."

"An unspeakable tragedy has unfolded in Minnesota - my good friend...