A major Arlington intersection has reopend after police wrapped up an investigation into a collision between a police car and a civilian vehicle that left the officer seriously injured.

The officer was responding to a call when his cruiser hit another car at Washington Boulevard and Glebe Road around 2:15 a.m., said Det. Crystal Nosal, a spokeswoman for the Arlington police.

The 40-year-old officer was transported to the hospital, along with the driver of the other vehicle, who suffered minor injuries in the crash, Nosal said.

The officer was heading southbound on Glebe Road when the wreck occurred, Nosal said. Police were on the scene conducting a reconstruction of the crash, so the intersection was closed for about five hours Wednesday morning.

The name of the officer, who is a 5-year veteran of the Arlington police, was not released.

For the latest on the traffic impact, see Dr. Gridlock.