"MULTIPLE" people are dead and many have been taken to hospital after a mass shooting at a riverfront shopping centre in Jacksonville that was hosting a video game tournament, police in Florida have said.
The Jacksonville Sheriff's Office has reported that one suspect is dead at the scene after the shooting at Jacksonville Landing, but it was unknown if there were other suspects involved.
The office used Twitter and Facebook to warn people to stay far away from the shopping centre.
The department said to "stay far away from the area. The area is not safe at this time. Stay away".
"We are finding many people hiding in locked areas at The Landing. We ask you to stay calm, stay where you are hiding," the sheriff's office said via Twitter.
"Swat is doing a methodical search inside The Landing.
"We will get to you. Please don't come running out."
The sheriff's office did not provide any other information on Sunday night but also warned news media to stay away from the area, which contains restaurants and shops along the St Johns River.
The GLHF Game Bar was hosting a video game tournament at the time of the shooting.
American news outlets were reporting that four people were killed, including a suspect.
