BELLEVUE, Neb. (AP) — Authorities arrested a 23-year-old man in an attack at a Nebraska fast food restaurant in which two people were shot and killed, two were wounded and officers responding to a report of a possible bomb inside a moving truck in the parking lot arrived to find the vehicle on fire.

Roberto Carlos Silva Jr., of Omaha, was booked into Sarpy County jail early Sunday on suspicion of first-degree murder and first-degree arson in Saturday night’s attack at a Sonic Drive-in restaurant in Bellevue, the Omaha World-Herald reported. Silva was being held without bond Sunday before making his initial court appearance.

In a news release early Sunday, Lt. Andy Jashinske said Bellevue police received a call at 9:23 p.m. Saturday about a possible bomb in a U-Haul truck parked outside of the restaurant in the Omaha suburb. A minute later, the call was updated to a possible shooting, he said.

Officers who arrived found the moving truck burning and four people who had been shot. Two were sent to the University of Nebraska Medical Center for treatment and the other two were declared dead at the scene,