Reporter: Lindsay Cohen
A truck driver makes a frightening threat. Police take no chances, bringing in the bomb squad, searching Sysco Foods in Riviera Beach and shutting down major roads.
Authorities are now looking into the man's medical history hoping to find some sort of explanation for this all.
It was a two and a half hour ordeal that evacuated buildings, shut down roads and brought some people's workdays to a standstill.
The call brought out the bomb squad. The claim: An explosive device on a local delivery truck.
What went on unfolded just before 5 p.m. Thursday at the Sysco Distribution Center in Riviera Beach. Authorities initially got a call about a man who was unresponsive. They say, when they got there, he told them he had a bomb on board his truck.
"I'm hoping that somebody just called in, just to let off some steam,"says truck driver Dariel Jones.
Tim Menard adds, "Especially nowadays, you know, you never know. It could be a prank. It could be the real deal."
Police treated it as the real deal - calling out dozens of emergency vehicles, shutting down several major roads, and searching anywhere the man had access to.
Sysco truck drivers, trying to make pick-ups or drop-offs, were forced to wait with little information. Just the sight of police in full force.
"We got three trucks right behind me. I don't know, something could be on it," says Menard.
Those fears subsided as authorities searched but found nothing. Officials say it was just a false alarm called in by a man they believe may have mental problems.
Now, that man's been identified as 42-year-old Alan Frank Schmidt from Huron, South Dakota. A relative tells police Schmidt is on medication, but may not have taken it. He's being treated at a local hospital.