A San Antonio police officer was hospitalized after a driver allegedly rear-ended a patrol vehicle on the Northeast Side, according to the San Antonio Police Department.

Officers were initially responding to a "separate accident minor" just after 2 a.m. Saturday near Interstate 35 North and Northeast Loop 410. Shortly after arriving, police said the driver collided with the rear of the patrol vehicle, causing a "domino effect of crashes." The officer was taken to a local hospital for precautionary evaluation, according to an SAPD preliminary report.

The driver, identified as a 41-year-old man, was evaluated for intoxication, police said.