An off duty Greeley police officer helped Longmont police catch two suspected burglars at 3:30 Sunday morning.

A police report says Charles Anthony Mock and Killian Peter McNamara, both 19, were arrested on suspicion of second-degree burglary, first-degree criminal trespass and two counts of conspiracy.

An off-duty Greeley police officer was on his way home from work when he saw a vehicle driving without its headlights on near the 1100 block of Button Rock Drive.

The officer saw the vehicle stop and a passenger step out and run into an open garage, using a flashlight to read the license plate on a vehicle parked inside. The officer then called Longmont police.

Longmont police stopped the vehicle and identified Mock and McNamara, both of whom admitted Mock entered the garage to get a better look at the vehicle inside. Police took the two men to Boulder County Jail, where they remained on Monday morning.

John Bear: 303-684-5212, bearj@timescall.com or twitter.com/jonbearwithme