SOMERVILLE — A Hillsborough cop was arrested and charged with driving while intoxicated after Somerville police found him asleep behind the wheel in the middle of the street, according to a police report of the incident.

According to the report, officers responded to a report of a male asleep behind the wheel of a vehicle in a lane at the intersection of East Main and North Bridge streets Nov. 20 at 1 a.m.

When police approached the 2005 silver GMC Envoy, they found a man asleep behind the wheel with his jeans unbuttoned and open, the police report said.

The driver was identified in the report as Richard J. Yock. Somerville Police confirmed he is an officer with the Hillsborough Police Department.

An officer asked Yock to exit the vehicle and when he did, the Somerville officer "smelled a strong odor of an alcoholic beverage emanating from the vehicle," according to the police report.

After conducting several field sobriety tests, Yock was placed under arrest for suspicion of operating a motor vehicle under the influence, the report said. He was taken to police headquarters in Somerville for further testing, according to the report.

While at the station, the report said Yock "began swallowing air and burping" during his observation, forcing the officer to start over. After approximately 20 to 30 burps, the report said, Yock was told that forcing himself to burp during an observation "would be treated as a refusal," according to the report. Yock stopped burping, the report said.

He was then given a blood alcohol test, according to the report. The report said the test indicated that Yock had a .21 BAC, more than twice the legal limit in New Jersey.

Yock was charged with driving while intoxicated.

This isn't Yock's first reported incident on the road. According to a report from The Express-Times in Easton, Pa., Yock was involved in a single-vehicle crash while off-duty in 2010.

Yock said at the time he was cut off while driving in Phillipsburg, causing him to crash into a utility pole, the newspaper reported. Then-Phillipsburg police Chief Edward Mirenda told the newspaper that officers did not suspect alcohol was a factor, and no charges were filed after the incident.

A call to the Hillsborough Police Department seeking information on Yock's status with the department was not immediately returned.

Alex Napoliello may be reached at anapoliello@njadvancemedia.com. Follow him on Twitter @alexnapoNJ. Find NJ.com on Facebook.