A brush fire in the Christmas area of Orange County has burned about 2,000 acres, forestry officials said Monday.

The "water plant fire," which was ignited by a lightning strike Friday north of Cocoa off State Road 520, flared back up Saturday and through the weekend.

It was about 20 percent contained Monday evening, the Florida Forest Service said.

The agency has called in reinforcements from surrounding counties, including Brevard; some 40 personnel are on the ground cutting fire lines with bulldozers and trying to douse flames using brush trucks. Helicopters are also dropping water.

"They are in a genuine battle right now trying to get containment," said Julie Allen, of the Florida Forest Service. "We are still in a serious drought situation, so don't become complacent."

Not far from the fire are 11 homes in the James Creek Road area, where people such as Diane Hessenaur live. She and her husband have gathered their belongings, ready to evacuate and help her neighbors.

"I'm going to stay as long as I can and make sure everyone around here is protected," Hessenaur said.

Smoke could loom overnight and into the morning rush hour, and it's possible State Roads 520 and 528 could be shut down due to visibility issues.

On Saturday in Brevard County, a SpaceX static fire test sparked a brush fire that burned about 4 acres on a small island near launch pad 39A at Kennedy Space Center. The fire didn't threaten any structures and was contained a few hours later.

A Falcon 9 rocket is set to launch this Thursday at 5:55 p.m. It will be SpaceX's 11th commercial resupply mission to the International Space Station. We will carry live coverage of that launch both online and on TV.