The FBI says a man's body found in charred ruins of a Kansas motel room after a shootout that injured three federal agents is that of the robbery suspect they were trying to arrest.

The FBI said Tuesday the body was identified as 28-year-old Orlando Collins, and the preliminary conclusion of the coroner is that Collins fatally shot himself. Toxicology tests are pending.

The Saturday night shootout at the Country Club Motel in Topeka injured two deputy federal marshals and an FBI agent who were part of a fugitive task force. The FBI says its agent remained hospitalized Tuesday in good condition.

Authorities trying to arrest Collins came under fire as they approached a motel room, from which a fire then erupted.

The fire's cause has not been released.