MIAMI (AP) — Four people, including a UPS driver, were killed Thursday after robbers stole the driver's truck and led police on a chase that ended in gunfire at a busy Florida intersection during rush hour, a law enforcement official said.

• 4 killed in South Florida following police chase, shootout 
• Robbers stole a UPS truck and led police on a chase
• 2 robbers, the UPS driver, and a bystander were killed

Both robbers were shot and killed, and the fourth victim was in a nearby vehicle when shots rang out at a crowded intersection in Miramar, about 20 miles (32 kilometers) north of where the incident began, according to an official who spoke to The Associated Press on condition of anonymity because the information had not yet been announced publicly.

Television news helicopters showed first responders tending to at least one person who fell out of the UPS truck, moments after several shots were fired when the chase ended.

In Coral Gables, where the incident began, police said a jewelry store worker was also injured but could not say if she had been shot. There was no immediate update on her condition.

It all began shortly after 4 p.m., when police in Coral Gables received a silent alarm at the Regent Jewelers store in the city's Miracle Mile area. Coral Gables Police Chief Ed Hudak said during a news conference that two suspects were at the store and that shots were being fired when police arrived.

The suspects fled in a truck, then carjacked the UPS delivery truck and its driver not long afterward to start the chase into the southern portion of Broward County, running red lights and narrowly avoiding some crashes along the way. The UPS truck finally stopped in one of the middle lanes of a busy roadway, caught behind a wall of other vehicles waiting for a red light to turn green. Television footage showed several officers on foot, some with guns drawn, approaching the truck once it stopped from the rear and the driver's side.

News helicopters were following the chase and at least one showed the conclusion live, with one person falling out of the vehicle's passenger side after several shots were fired. It was unclear if the shots were fired from inside the truck, from law enforcement who were moving in or some combination thereof.

“This is what dangerous people do to get away,” Hudak said. “And this is what people will do to avoid capture.”

A bullet hit a window at Coral Gables' City Hall, which was locked down, Hudak said. No one inside City Hall was believed to be injured, Hudak said.

Hudak said officers responded within 90 seconds, including one officer on foot who was involved in a nearby traffic stop. It was not immediately clear if anything from the jewelry store was taken, Hudak said.

Hours after the chase ended, medical gauze, wrappers and other debris remained strewn across the Miramar roadway's middle lane, next to the truck which still had its right rear door open. Traffic remained snarled, and it was not clear how long it would take investigators to clear the scene.

UPS spokesman David Graves said they are staying in touch with authorities. He didn't share any information about the driver.