A man and woman were shot and killed in a souvenir shop near San Francisco's Fisherman's Wharf on Sunday evening, and police have detained a man who may be connected to the shooting, a police spokesman said.

Officers responded to reports of a shooting at 269 Jefferson St. at about 8:20 p.m., according to a dispatcher at the San Francisco Fire Department.

Arriving crews found a man and woman who had been shot inside a store that sells souvenirs and luggage. They were pronounced dead at the scene, San Francisco police Lt. Troy Dangerfield said.

One man has been detained and is being questioned by police, but officers have not determined if he is the shooter, Dangerfield said.

No other injuries have been reported.