Five of the victims were men, and one was a woman, police said.
Emerman said the surviving victims had injuries ranging from non-life-threatening to critical.
D.C. police were searching for two “males armed with AK style rifle,” last seen in the rear of the complex, according to a tweet sent out by the department just after midnight. Authorities said they’re looking for a light-colored Nissan sedan with an “unknown tag” number that’s believed to be involved.
Police are not yet sure what led to the shooting and are trying to gather surveillance video from the area.
The second shooting was reported about 10:30 p.m. in the 1400 block of Rhode Island NE near Brentwood Road. Three people were shot, including one man who died, according to police.
The two other victims of that shooting, a man and a woman, were both conscious and breathing, police said.
Police said it was unclear whether the two shootings were connected.
D.C. Council Member Brianne K. Nadeau (D-Ward 1) issued a statement on Twitter after the Columbia Heights shooting. “It is beyond time to stop the epidemic of gun violence in this country, and I will not stand by while the residents of Columbia Heights are again visited by the horrible specter of violence,” she wrote.