FORT PIERCE — Authorities say a fire at the mosque that was attended by the gunman in the Orlando nightclub shooting is being investigated a as a possible arson.
In an update on its official Facebook page, The St. Lucie County Sheriff's Office said surveillance video shows someone approaching the Islamic Center of Fort Pierce moments before a flash was seen and the fire started early Monday.
The mosque was attended by Omar Mateen, who opened fire at the Pulse nightclub on June 12 in a rampage that left 49 victims dead and 53 wounded. It was the worst mass shooting in modern U.S. history.
Multiple agencies, including the State Fire Marshal's Office, the federal Bureau of Alcohol, Tobacco, Firearms and Explosives and the FBI, are investigating. Sheriff's officials say they'll be releasing the video and asking for the public's help in identifying the person seen in the video.