Three people were dead inside a Roseville apartment and a fourth was badly wounded when police officers went in on a welfare check early Saturday.

All four individuals found in the apartment on the 1600 block of Eldridge Avenue knew one another, Deputy Chief Joe Adams of the Roseville Police Department said at a news conference Saturday afternoon. Officers, he said, had been summoned by a 911 caller around 2:30 a.m. who knew one of the victims.

"We do believe that everybody that's involved is accounted for. It's just a matter of continuing the investigation to try to figure out who is responsible for the deaths of everybody," Adams told reporters outside the red brick building, a few blocks southwest of the intersection of Hwy. 36 and Snelling Avenue. Police have not released names of the victims and would not confirm any other details.

When officers entered the apartment, according to the department's account, they found a man whose throat was cut. He was taken to the hospital in critical condition.

As officers helped the man, they realized there were three other bodies in the apartment, all men, dead from what police described as "apparent knife and gunshot wounds."

"This isn't something that happens here frequently, and it's a shock to everybody," Adams said at the news conference.

The state Bureau of Criminal Apprehension is helping to investigate the incident, but Adams say there's no reason to believe there is further risk to the public.

Anyone with information about the crime can call Roseville detectives at 651-792-7008, or submit tips online on the city's website.

Steve Gorman, who lives around the corner from the apartments, stopped to survey the crime scene, about 12 hours after police arrived. Yellow tape was still strung around.

Gorman, who's lived in Roseville for 25 years, said crime in the area has surged since the pandemic. Gorman recently intervened when someone tried to steal his neighbor's car, and said his truck was also stolen and abandoned two years ago. His message to authorities: increase neighborhood security.

"Try to do your job more. Patrol these neighborhoods more," Gorman said. "Something's got to change, or we're going to continue to see more and more of this happening."