Police in Aurora, Colo., said they had received a “reliable” tip that the suspect of an armed robbery at Wells Fargo bank committed earlier was stopped at the red light.

Officers then barricaded the entire area and halted 19 cars.

“We didn’t have a description, didn’t know race or gender or anything, so a split-second decision was made to stop all the cars at that intersection, and search for the armed robber,” Aurora police Officer Frank Fania told ABC News.

Thereafter, the police went from car to car and handcuffed every single passenger at the intersection.

“Most of the adults were handcuffed, then were told what was going on and were asked for permission to search the car,” Fania said. “They all granted permission, and once nothing was found in their cars, they were un-handcuffed.”

The search lasted about two hours. It came to an end when police searched the final car and apprehended the suspect.

Passengers who had been held at the intersection were allowed to leave once the suspect was apprehended.