A search is under way in the Sacramento recreation district on Sunday for at least two gunmen who shot dead six people and injured 12 others.
The streets of California’s capital, Bars and Nightclubs, were crowded when the sound of quick-fire shots frightened people.
Sacramento police have confirmed that they are looking for more than one suspect 2 o’clock shooting.
Police Chief Kathy Lester has asked people to share videos and other evidence that could lead to the killers.
“The amount of violence that has just happened in our city is unprecedented in my 27 years here,” he said.
“We are shocked and heartbroken by this tragedy. But we are also committed to finding those responsible and ensuring justice for the victims and their families. “
Sacramento Mayor Darrell Steinberg has spoken of rising levels of violence in the city.
“We can never take it for granted and we never will,” Mr Steinberg said of the shooting. “But we also have to live our lives.”
The shootings took place shortly after a fight broke out, but police did not know if the two incidents were connected.
Eyewitness videos posted on social media showed rapid gunfire for at least 45 seconds as people screamed and ran for cover.
Police have found a stolen handgun, but do not know if it was used in the shooting.
The dead included three men and three women.
According to a database compiled by the Associated Press, USA Today and Northeastern University, Sunday’s attack is the third time this year in the United States that a mass shooting has killed at least six people.
It was the second mass shooting in Sacramento in five weeks.
President Joe Biden on Sunday called for action against gun crime.
“Today, America is once again mourning for another community devastated by gun violence,” he said. “But we must do more than mourn – we must act.”
February 28, A father killed his three daughters, a chaperone and himself During a weekly supervised visit to a Sacramento church.