ORLANDO, Fla. — A former employee opened fire inside an industrial park, killing five co-workers; and then he turned the gun on himself.

The shooting happened just after 8 a.m., in Orange County, Fla.

“It’s a sad day for us once again in Orange County,” Orange County Sheriff Jerry Demings said. “Our hearts and prayers go out to the victims’ families.”

At 8:03 a.m., the county received a 911 call about an active-shooter situation at Fiamma, Inc., a worldwide business that provides RV accessories. Deputies arrived on scene two minutes later.

Upon arriving on the scene, Demings said, they found multiple people shot, including three men and one female who died at the scene. A fifth male was shot and transported to the hospital, however, succumbed to his injuries.

A 45-year-old man believed to be the shooter was found dead inside, from an apparent self-inflicted gunshot wound. He had in his possession, a handgun and knife, Demings said. It’s not believed that he used the knife on anyone.

There were seven survivors inside the warehouse, who are being interviewed by officials.

According to the sheriff, the shooter was a former employee who was fired in April. Police responded to a workplace violence incident in June 2014, for “battering.” No charges were filed at that time.

He also had a minor criminal history, Demings said, including a DUI, misdemeanor battery and marijuana possession.

There is no indication that he was part of any terrorism organization.

The Orange County Sheriff's Office tweeted early this morning: “Situation contained, now investigating tragic incident & will soon have accurate information.”

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Florida Gov. Rick Scott released the following statement in response to the mass shooting:

“Over the past year, the Orlando community has been challenged like never before. I have been briefed by our law enforcement officials on this tragic incident and 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.”