TRACY CITY, Tenn. — Authorities have locked down a neighborhood and are using dogs in the search for Kermit Bryson, a suspect in the shooting of two officers overnight.

Authorities at the scene said two Grundy County deputies and a Monteagle police officer went to Mr. Bryson’s trailer behind a housing development to serve a warrant for violating probation.

While they were there, gunfire erupted. One deputy, a 30-year-old new graduate of the police academy, was dead at the scene, 12th Judicial District Attorney Steve Strain said. The Monteagle officer was treated at a Sewanee hospital for injuries that were not life-threatening, Mr. Strain said. The other deputy was not injured.

No one is being allowed to enter or leave the neighborhood, authorities said. Two helicopters are in the air and dog teams from Rhea and Coffee counties are on the scene.

More information will be available after a noon news conference, authorities said.

Continue to follow updates here throughout the day and read the Chattanooga Times Free Press on Friday for complete coverage.