PHILADELPHIA (CBS) – A Philadelphia police officer, who was en-route to pick up Mayor Nutter, was injured in a two-car crash early Tuesday morning.

READ MORE: Triple Shooting At Penn's Landing Leaves 3 Teenagers Injured: Philadelphia Police

The crash happened at about 7:30 a.m. along Martin Luther King Drive near Montgomery Drive in Fairmount Park.

According to investigators, 45-year-old Nicholas Campolongo, a Philadelphia Police officer who is a member of Mayor Nutter’s security detail, was driving a city-owned SUV northbound on MLK Drive. As the officer was attempting to turn onto Montgomery Drive, a civilian vehicle traveling southbound slammed into the city vehicle, spinning it around.

READ MORE: Philadelphia Weather: Heat Advisory In Effect Until Sunday Evening As Temperatures Hit Record Highs

Campolongo, a 23-year veteran of the force, was taken to Hahnemann University Hospital for treatment and observation. He is listed in stable condition. The civilian driver was also taken to Hahnemann for treatment of minor injuries.

Investigators say the officer was on his way to pick up Mayor Nutter from his home.

The accident remains under investigation.

MORE NEWS: Betts Falls Triple Shy Of Cycle, Leads Dodgers Past Phillies