WASHINGTON — A D.C. police officer struck a pedestrian in Northwest D.C. Monday afternoon, sending both people to the hospital.

Police say a police officer driving a Metropolitan Police Department SUV hit a man who was walking near the intersection of Connecticut Avenue and L Street in Northwest D.C. at about 1:45 p.m.

D.C. Fire and EMS transported the police officer and the pedestrian to an area hospital. The pedestrian sustained critical injuries and the police officer has non-life-threatening injuries.

Officials are investigating what caused the crash.

Earlier, officials said the person struck was a bicyclist, and later updated to clarify that it was a pedestrian.

The crash investigation caused road closures in the area through the afternoon. At one point, the investigation closed Connecticut Avenue between K and M streets as well as L Street between 17th and 18th streets.

All lanes reopened by 7 p.m.

Below is a map with the location of the crash:

Stay with WTOP.com for updates.