D.C. police are investigating two homicides that occurred within a span of an hour, including one that resulted from an attempted carjacking in Northwest Washington.

The first fatal shooting occurred about 10:30 p.m. Tuesday on the 2400 block of Ninth Street NW. A man and woman were sitting in a parked BMW sedan when a group of men approached them, said D.C. Police Officer Joshua Aldiva. When one of the men brandished a handgun, the driver of the BMW tried to speed away. The gunman fired several rounds at the vehicle.