Authorities say a Florida Panhandle man was killed by a falling tree as Hurricane Michael tore through the state.

Gadsden County Sheriff's Office spokeswoman Anglie Hightower says they received a call around 6 p.m. Wednesday, saying a tree had crashed through the roof of the man's Greensboro home and trapped him. Emergency crews were heading to the home, but downed power lines and blocked roads were making the trip difficult.

Officials hadn't immediately confirmed the man's name.

Florida Gov. Rick Scott says search and rescue teams are heading into the state's hardest-hit areas to help survivors of Hurricane Michael.

Scott held a news conference Wednesday evening and urged people to stay off roads and leave them open to first responders as they begin the work of search and rescue — and recovery.

He says flash flooding and tornadoes are still possible, and says officials have heard reports of at least two tornadoes in Florida.

Scott said at least 192,000 homes and businesses are without power, but vowed "a massive wave of response" with thousands of utility personnel fanning out to restore power, along with medical teams, law enforcement personnel and the search and rescue squads.

This is developing news, please check back here for more updates.