Four people are dead and several others are in custody after a shooting at a St. Louis business, officials said.

Police say two men and two women were shot dead at about 1:40 p.m. at the Cherokee Place Business Incubator, according to KTVI. There is no active search for shooting suspects; The St. Louis police tweeted that the shooting was a murder-suicide and that "the shooter and three victims are deceased."

The 4,000-square-foot building houses 10 small businesses. The Post-Dispatch reports that the shooter opened fire after having a brief argument with people inside one of the businesses.

The building was evacuated and police interviewed witnesses on the scene, according to the paper. One witness, Kevin Johnson, told the paper that he was having lunch across the street when he saw a barefoot woman run out of the business screaming. She met with arriving officers and pointed to the business.

Several people seen taken out in handcuffs on the scene were reportedly not suspects. They were simply inside during the shooting.

Michael Graff, who has a law office inside the building, said the business where the incident took place is owned and staffed by Somalian immigrants, according to the Post-Dispatch. He said he's recently heard heated arguments coming from the business.