Suicide bombing suspected in Nashville explosion as investigators search home south of the city

Officials have previously said they have recovered human remains at the scene of the bombing in downtown Nashville and an FBI official on Saturday said agents are not looking for another suspect.

Agents are also at a home in Antioch, just southeast of Nashville, to conduct “court-authorized activity,” FBI spokesman Jason Pack told CNN. According to a law enforcement official, a tip about the vehicle involved in the explosion on Christmas morning led law enforcement to the Antioch home.

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Several local residents told CNN they woke to the sound of gunfire early Friday morning. Police said they were called to the location after a report of shots fired around 5:30 a.m.

Once on scene, police found a white RV parked in front of an AT&T transmission building at 166 Second Ave. North. The RV was repeatedly broadcasting a message warning of an explosion set to occur in 15 minutes, police said.

“This vehicle will explode in 15 minutes,” the voice said, according to Betsy Williams, who was staying at an apartment on Second Avenue. After repeating that message for a minute, the voice then said the vehicle will explode in 14 minutes, and continued counting down from there.