The 911 emergency call system for the District briefly stopped working Saturday afternoon due to a power outage.

Paul Quander, deputy mayor for public safety and justice, said a backup system allowed 911 and 311 calls to be restored, though it was not immediately clear how long the outage had lasted. Quander said the system went down when power was lost at the main call site on Martin Luther King Jr. Avenue, and a backup generator did not automatically start.

While 911 was not working, police asked residents with emergencies to call the command information center at 202-727-9099, and people with non-emergency calls to contact their local police district.