Firefighters made major gains against a wildfire that has charred thousands of acres along the Atlantic coast as police questioned a man seen tossing a Molotov cocktail into nearby woods.

Authorities along Florida’s Atlantic coast, where wildfires have gutted dozens of homes and scorched thousands of acres, arrested a man Wednesday who they said threw a glass bottle containing an accelerant into the woods.

Investigators searched Tuesday for one or more arsonists behind a string of stubborn wildfires that have destroyed or damaged more than 160 homes on Florida’s Atlantic coast.

Investigators searched Tuesday for one or more arsonists behind a string of stubborn wildfires that have destroyed or damaged about 100 homes on Florida’s Atlantic coast.