A group of four men were caught in the act breaking into a Northwest Side motorcycle dealer early Tuesday morning.
A San Antonio police officer on patrol was driving down the Interstate 10 frontage road near De Zavala Road when he saw a white van pull up in front of the Alamo Cycle-Plex around 2:30 a.m.
Investigators said the officer knew something was wrong and immediately called for backup.
"They probably would have tried to take more had the officer not happened to drive by and respond, or the alarm had gone off," said Tori Pampell, Cycle-Plex manager.
Police arrived on scene and said the thieves already had two dirt bikes and a scooter loaded in the van when they attempted to flee.
Police said the van was stolen earlier in the night from an apartment complex.
"They even hit a cruiser where the cruiser blocked them from going out. And I saw the video -- (they) hit the bumpers (and) you can see the bumper is messed up, as well," said Andy Zamarripas, the owner of the stolen van.
According to police, the driver rammed the van into a patrol car and another suspect got into a physical fight with an officer.
One man ran across the interstate before an officer used a stun gun on him. Officers were able to take him into custody.
Three of the suspects were detained while the other managed to get away from officers.
As of Tuesday afternoon, their identities had not been released.