A massive Everglades wildfire is burning thousands of acres in Broward County and sending smoke across South Florida.

Wildfire smoke wafting east from the Everglades is causing “unhealthy” air quality and low visibility across Broward County on Wednesday, officials say.

A wildfire in the Florida Everglades, known as the Mile Marker 39 Fire, has scorched approximately 42,000 acres in western Broward County. The blaze, which began as two separate brush fires on August 18,