UPDATE: The police commissioner told reporters outside Maryland Shock Trauma Center that the officer was getting something out of his car when the man approached with a small caliber revolver. He said the incident did not appear to be a robbery and called it a "random, chance encounter," Jessica Anderson reports.

Police are reporting that a homicide detective was shot in the leg and hospitalized with non-life-threatening injuries after an encounter with a gunman in a downtown parking garage near police headquarters tonight.

The shooting occurred in a parking garage on Frederick Street, across the street from the Police Department's Central District and headquarters. A spokesman said that based on preliminary information, the officer was getting into work early and was struck in the leg by an unknown gunman. Police quickly blocked off the area in an attempt to find the suspect, who had not been located as of the last update.

It's also unclear whether the detective exchanged gunfire with the suspect.

The shooting hits home for police not only because of its proximity to headquarters but because police are preparing to bury one of their own tomorrow morning when Officer William H. Torbit Jr. is laid to rest. 

Torbit was killed by friendly fire in a shooting near downtown, and in November an officer was shot at East Baltimore and North Calvert streets, just a few blocks away from tonight's shooting.