A SpaceX static rocket fire test ignited a brush fire in the Merritt Island National Wildlife refuge, the U.S. Fish and Wildlife Service said.

The rocket test-firing occurred early Sunday afternoon on launch pad 39A, SpaceX said in a tweet.

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Fish and Wildlife officials said the blaze is 2 acres at this time on a small island near the launch pad.

Firefighters are using a helicopter to drop water on the fire, officials said.

SpaceX conducted the test in preparation for the company's commercial resupply mission to the International Space Station slated for Thursday at 5:55 p.m., NASA said.

USLaunchReport shot video of the static fire test.