Police have shot and killed a gunman who opened fire at an apartment complex pool in San Diego, shooting seven people, police said.

One of the victims, a woman, has died, The Associated Press reported early Monday.

According to KMFB-TV, San Diego police responded to the La Jolla Crossroads apartment complex Sunday evening after receiving multiple reports of an active shooter.

A witness told KSWB that the gunman looked "pretty relaxed" and had "a beer in one hand and a gun in the other."

Police said that when officers arrived, the suspect aimed his gun at them, KMFB reported. Police then opened fire, killing him, authorities said.

The suspect was later identified as 49-year-old Peter Selis, police said, according to the AP.

The victims included four African-American women, two African-American men and a Hispanic man, the AP reported.

Read more here.

Police line (stock photo)

Credit: UpperCut Images

icon to expand image

Credit: UpperCut Images