June 11 (UPI) — Ultimate Fighting Championship events planned for this weekend on the White House lawn are costing more than $60 million, a court filing said.

The price includes food, the “octagon” cage and 494 port-a-potties on the South Lawn, CNN reported. The event is happening Sunday in celebration of President Donald Trump’s 80th birthday, Flag Day and ahead of the country’s 250th birthday on July 4.

“In preparation, well over $60 million and tens of thousands of hours of labor have been expended. More than 4,000 spectators are expected to attend on the South Lawn, including more than 1,000 members of our armed services, and more than 120,000 visitors are expected to watch from the nearby Ellipse after winning free tickets in a lottery,” a Tuesday filing from the government said.

The event will be held at the South Lawn, while the Fan Fest and ceremonial weigh-in will be at the Ellipse. Court documents say that about 125,000 people are expected to attend and another 75,000 requested tickets.

“Many of the event’s attendees will visit from outside the capital region, and have already invested personal resources in lodging, air transportation and other arrangements,” the document said. “Fourteen world-class athletes, who have been training for months, have traveled from all over the world to compete (including for two world championships).”

The filing is in response to a lawsuit filed on June 6 by the Public Integrity Project to stop the event. It alleges that the event violates National Park Service regulations, ignores congressional authority and is meant to benefit Trump and his friends. UFC CEO Dana White supported Trump during his presidential campaign.

It was reported in May that the president bought up to $50,000 in stock of TKO, the parent company of the UFC and WWE. And the Trump administration is planning to sign a memorandum of understanding with UFC at 2 p.m. EDT Thursday to create a public-private partnership.

“We will not be making money on America’s 250th anniversary. This is an investment for the long term. This is about earned media,” Mark Shapiro, president and chief operating officer of TKO, told The Hollywood Reporter, The Hill reported. “We see this once-in-a-lifetime stage as a strategic investment to drive subscriber acquisition at Paramount+, massive audience sampling for the UFC overall and Super Bowl-like earned media across the globe.”

The only way to watch the event is through a Paramount+ subscription.

The lawsuit was filed on behalf of two plaintiffs: Paul Romano, a retired Air Force sergeant and Vietnam veteran, and Susan Douglas, a senior citizen activist and organizer.

“This is a highly complex, multi-faceted event that has been carefully planned by a multitude of public and private entities over a significant period,” White House management and administration director Joshua Fisher said in a sworn declaration as part of the suit.

The UFC manages “production, labor, construction, and promotion costs,” and the federal government is providing “emergency equipment and services, including first aid/medical services, law enforcement, and security,” Fisher said.