Sacramento, California – 6 killed and at least 18 people were injured after a mass shooting erupted in the city’s downtown on early Sunday, no suspects have been arrested yet, authorities said.

“Police say six people are dead and at least nine others injured after a shooting in downtown Sacramento. Police provided few details about the shooting but said in a tweet that a “large police presence will remain and the scene remains active,” The Associated Press Tweeted.

At 2:00 am earlier on Sunday, Chief Kathy Lester of Sacramento Police said that the officials were patrolling the area close to the Capitol building of the state when they heard gunshots being fired and found a huge crowd after rushing to the scene immediately.

The shooting killed three men and three women on the spot. The rest of the 12 victims were driven to the hospital for immediate treatment, said the police.

After the incident near the city’s Capitol and the Golden 1 Center, the police officials issued an order to close access to the area. Police released no information regarding the victims’ health. However, they said, all of them are adults.

After investigation, it was found out that there had been a fight before the shooting and ‘there were multiple shooters’. Lester said it is currently unknown whether the shooters were from two different parties or if they knew each other.

As of late Sunday, investigators were interviewing eyewitnesses and were looking for evidence to track the suspects.

Before Sunday’s shooting incident, an open fire had erupted at a concert in Dallas, Texas. Police officials were at a nearby location when the shooting happened at 2:00 am.

“We had a large crowd in the area. We don’t know if it was part of a club or an event,” said Lester regarding the Sacramento incident.

On Sunday, Sacramento Mayor Darrell Steinberg strongly condemned the incident and pleaded with the residents to ‘end the gun violence’.

“It’s a sickness in our country, it’s a sickness in our culture,” he said.

Authorities have urged the residents living in the vicinity of the shooting area to submit any video or picture they might have from the scene. They also provided a QR code for contact. “We are aware of a social media video that appears to show an altercation that preceded the shooting. We encourage any community members with related video to follow the link/QR code below to submit the video to SPD,” Tweeted Sacramento Police.