Palo Alto police got some help from a surveillance camera and dog in arresting an uncle and a nephew who were allegedly trying to burglarize a vacant commercial building in Stanford Research Park on Sunday morning, police said.

The two men, an uncle and a nephew, were reportedly captured by surveillance cameras as they got inside the building on the 3200 block of Hanover Street -- a building that had already been burglarized twice earlier this month. A security guard to saw the footage and at around 8 a.m. called the police, who arrived on the scene and saw the two men running on the roof of the building and scrambling to hide from officers, police said.

Palo Alto officers, with help from the San Mateo County Sheriff's Office canine unit, searched the building and ultimately found one of the suspects -- later identified as 54-year-old John Matthew Newell – hiding in a room. Police said Newell, who has no permanent address, disobeyed commands and was bitten on the arm by a dog before he was taken into custody.

The second suspect was located shortly thereafter as he was hiding on the roof. James Andrew Newell, 28, of Burlingame, was arrested without incident, police said. Officers found that the two men were in possession of burglary tools, including flashlights, gloves, wire cutters and power tools. In addition, James Andrew Newell allegedly had a pipe used to smoke narcotics, police said.

Police said John Newell suffered a puncture wound as a result of the dog bite and was taken to a local hospital, where he was cleared for incarceration. After the incident, detectives obtained information linking the two men to the prior two burglaries involving this building, on Oct. 14 and 28. In both of those incidents, copper wiring was stolen from inside the building.

The two men were booked into Santa Clara County Main Jail for three counts of felony commercial burglary and one count of misdemeanor possession of burglary tools. James Newell also faces a misdemeanor count of possession of narcotics paraphernalia.

Anyone with information about this incident is asked to call the Police Department's 24-hour dispatch center at 650-329-2413. Anonymous tips can be e-mailed to paloalto@tipnow.org or sent via text message or voice mail to 650-383-8984. Tips can also be submitted anonymously through the department's free mobile app, downloadable at bit.ly/PAPD-AppStore or bit.ly/PAPD-GooglePlay.