One person is dead, and at least four people have been injured after a gunman opened fire inside a Washington, D.C., gym on Thursday, before later turning a gun on himself, police said.
Officials said one of the injured was critically wounded and the shooter suffered from a self-inflicted gunshot wound after barricading himself inside an apartment.
A later update from police confirmed the suspect was pronounced dead at the scene.
Asked about the motive, officials said it was "very early," but they believe there was "some sort of a conflict with the apartment building."
Officials said there was a fire set inside the building at one point, and it has since been put out.
Authorities said officers heard a gunshot while communicating with the suspect and forced entry to the apartment, finding the barricaded suspect with what appears to be a self-inflicted gunshot wound, officials said at the press conference.
A source told ABC News that a man started firing near the entrance of VIDA gym near Logan Circle.
"We are writing to inform you that VIDA Logan Circle is temporarily closed following a shooting that occurred earlier today," the gym wrote in an email to members on Thursday.
The suspect, according to sources, barricaded himself in an apartment in the building above the gym, according to multiple sources.
National Guard troops helped secure a perimeter of the area, a U.S. official told ABC News. No guardsmen have been injured or engaged, the official said.
The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) is headed to the scene, according to a source.
This is a breaking story. Please check back for updates.