A silent alarm tipped San Antonio police off to several masked men attempting to break into an ATM at the Chase Bank in the 17000 block of Bulverde Road.

When police arrived around 3:30 a.m. Sunday, the men scrambled. Officers saw a dually pickup leaving the scene, along with a dark-colored SUV.

One masked man fled into a nearby brushy area on foot, and police were unable to find him.

At last report, all the men were on the run.

Police say extensive damage was done to the ATM.