Police say a 61-year-old man fatally shot a neighbor in rural Pennsylvania and then ambushed responding state troopers, wounding two while firing dozens of rounds from a semiautomatic weapon.

When state troopers Joseph Perechinsky and William Jenkins were tasked Thursday morning with checking on a call of shots fired at a home in rural northeastern Pennsylvania, they had no idea about the danger they were driving toward.

Pennsylvania state police are investigating after two troopers were shot while responding to a call in northeast Susquehanna County on Aug. 7, officials said.