5-year-old boy wounded in Richmond drive-by shooting

San Francisco police are investigating separate stabbings over the weekend in the Mission District and Chinatown that left two men wounded, including one with life-threatening injuries. San Francisco police are investigating separate stabbings over the weekend in the Mission District and Chinatown that left two men wounded, including one with life-threatening injuries. Photo: Spencer Platt / Getty Image, Getty Image Photo: Spencer Platt / Getty Image, Getty Image Image 1 of / 1 Caption Close 5-year-old boy wounded in Richmond drive-by shooting 1 / 1 Back to Gallery

A 5-year-old boy and a 31-year-old man were seriously wounded when they were shot multiple times in a drive-by attack Tuesday in Richmond, police said.

The boy had been sitting in a car with the man around 7:30 p.m. when a vehicle pulled up next to them on the 200 block of South 37th Street. More than one suspect then opened fire, said Richmond police Capt. Mark Gagan.

The assailants then sped away as the wounded driver of the targeted car headed toward the Kaiser hospital in Richmond, where paramedics rushed to treat him and the child.

The man, who was not identified, was in critical condition. The boy was seriously wounded but was stabilized by Wednesday, Gagan said.

“It’s a pretty shocking act,” he said. “We know that it takes multiple interventions to stop this kind of gun violence.”

Gagan said Richmond police are putting all available resources on the street and working with the city’s Operation Ceasefire program and Office of Neighborhood Safety.

No suspects were immediately identified. Investigators were reviewing witnesses’ statements and asking anyone with information to call them.

Evan Sernoffsky is a San Francisco Chronicle staff writer. E-mail: esernoffsky@sfchronicle.com Twitter: @EvanSernoffsky