DENVER — Nine people were shot during a family gathering in a Denver park, but all of the victims were expected to survive, police said.

The shooting appeared to be a drive-by attack around 4:30 p.m. Sunday in the Byers and Pecos Park, The Denver Post reports.

Denver police spokesman Tyrone Campbell said six victims were transported by ambulance to hospitals and another three victims traveled to hospitals on their own.

The victims all appeared to be young people, but Campbell said he could not immediately specify their ages.

Police had partial information about a suspect but did not plan to release details about the suspect or a possible motive Sunday evening, Campbell said.

Witnesses said they heard gunfire and then saw people running from the area.

“It sounds like it was just a family gathering,” Campbell said. “The parties in the park, based on our information, have absolutely no culpability in this at all. They are considered victims.”