SAN DIEGO -- Police Tuesday announced the arrest of an ambulance company fleet manager who allegedly made threats against his co-workers and had numerous weapons in his car when taken into custody.

Brandon Murray, 27, allegedly threatened to "hurt everyone at the office" at Alert Ambulance in the Midway District on Monday, said San Diego Police Department spokeswoman Monica Munoz.

Officers went to the company's Hancock Street headquarters and were there when Murray called to say he was coming to pick up his things, Munoz said. She did not reveal whether there had been a recent change in his employment status.

Around 2:15 p.m. Monday, officers spotted Murray and his wife in a car in front of their residence in the Mid-City neighborhood of Colina del Sol and arrested him without incident, Munoz said.

Officers searched the car and seized four semi-automatic handguns, 18 additional ammunition clips, three knives and a box cutter, according to police.

Murray was booked on suspicion of threatening to commit a crime which would result in great bodily injury and spousal abuse for allegedly battering his wife, Munoz said.

She said it was not illegal for Murray to possess the weapons, but it is against the law to transport loaded firearms and conceal them without a permit.