In Fox Lake, Illinois, a police officer was ambushed and killed this morning.

A community an hour north of Chicago was on lockdown and a massive manhunt for three armed and dangerous suspects was underway after a police officer was fatally shot Tuesday morning.

Helicopters were circling above Fox Lake, Ill., and every law enforcement agency from the area, along with a regional SWAT team and K-9 units were hunting for as many as three suspects after the police officer was shot around 8 a.m. local time. Authorities confirmed to FOX32 that the officer had died.

The officer, who has not been identified, had radioed in that he was going to check on some suspicious activity. Lake County Sheriff spokesman Chris Covelli provided additional information at a news conference: