Shelley Adams told the Associated Press that her sister, Sheila McIntyre, called her from the building’s bathroom during the shooting and was very upset. She kept repeating “My boss is dead. My boss is dead,” Adams said.

A witness said they heard multiple, very loud gunshots, according to Fox 35 Orlando.

FBI is on the scene assisting local police on the investigation, a spokesperson from the bureau told Fox News.

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Florida Gov. Rick Scott said in a statement that he has been briefed on the situation.

“Over the past year, the Orlando community has been challenged like never before,” Scott said.

“Ann and I are praying for the families who lost loved ones today. I ask all Floridians to pray for the families impacted by this senseless act of violence. I will remain in contact with the Orlando law enforcement community throughout the day as more information is made available,” the statement read.