It was before sunrise, and it was during a long holiday weekend. But there was a dog, and unlike the famous Sherlock Holmes story in which the dog did nothing in the nighttime, this dog took action.

Around 5 a.m. Saturday in a house in the 5400 block of Macomb Street NW in the District’s Palisades area, a resident heard his dog bark, D.C. police said. He also heard his front door close.

Thus alerted, the resident spotted someone walking through his front yard and getting into a car, police said.

He called 911; officers heard the lookout and stopped a vehicle. Police said the car contained property from the home on Macomb.

As the investigation continued, police said, they received a second report. A resident of another house on Macomb was telling of a burglary.

Police said property from that home was also found, and they made two arrests. It was not clear how the dog was rewarded.