A man lit himself on fire near the White House on Wednesday afternoon — and he was caught on video appearing to calmly stroll through a park before cops extinguished the flames.

Witnesses saw the man erupt into a bright orange fireball at the Ellipse, a tourist-filled park that sits north of the Washington Monument, around 12:20 p.m

Video shot shows the man, clad in black pants, covered head to toe in flames as he takes a slow walk across the grass near 15th Street NW and Constitution Avenue NW.

Officers are seen racing over to the man, including one armed with a red fire extinguisher, and police cruisers pulling up with lights flashing.

The Ellipse is a 52-acre public park that lies south of the White House.

The man, who wasn’t immediately identified, was taken to the hospital with life-threatening injuries after suffering burns to 85 percent of his body.

A suspicious package that was on fire was also found in the park, near where the man was extinguished.

Last month, a man in a motorized wheelchair set his jacket on fire outside the White House, prompting a security lockdown. He suffered non-life-threatening injuries.

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