WASHINGTON (AP) — The saga over the Lincoln Memorial Reflecting Pool took a turn as President Donald Trump said Tuesday that six people have been arrested over recent damage. The president’s troubled $14-million-plus rehabilitation project has become a visceral flashpoint over law enforcement, aesthetics and environmental concerns ahead of the country's 250th anniversary celebrations.

In a social media post, Trump claimed without supporting evidence that there had been a “350-foot gash” in the paint as the administration faces a self-imposed deadline to fix the botched renovation before the nation's 250th anniversary celebration next week. He has also said, including again on Tuesday, that the federal government would release images to substantiate his claim.

Trump pledged to beautify the century-old Reflecting Pool ahead of the anniversary celebrations, draining its water and having the bottom painted a color he dubbed “American flag blue.” But since the site was restored, its water has been plagued with algae bloom and pieces of the new coating appeared to be peeling off the bottom.

Trump, without evidence, has repeatedly blamed the peeling paint on vandalism.

“It was purposefully and criminally done, and somebody had to work very hard, probably in the dark of night, to create such a condition,” Trump wrote Tuesday, adding that another seven people were cited for allegedly damaging the pool.

The U.S. Park Police and the Interior Department did not immediately respond to requests for comment on the arrests or Trump's claim of vandalism.

The Associated Press verified that one man was arrested after touching the already-peeling paint. He said he wanted to examine the new coating, touching a still-attached chunk briefly then letting go shortly after a park worker told him to.

A maintenance problem morphs into a law enforcement issue

National Guard members and Park Police have been patrolling the deck around the pool after Trump insisted over the weekend that vandals were responsible for damage to the liner, without providing evidence.

Trump said Tuesday that the Interior Department will release images of alleged vandalism at the pool. Pressed by reporters after Air Force One landed in Pennsylvania for a visit to a trucking company, Trump said Interior is “going to share” photos and videos of the alleged vandalism, which remains unverified.

The president had said on Monday that the images existed and the federal government would provide them. No photos were made public as of Tuesday afternoon.

The arrests highlighted what’s expected to be tightened security in the capital ahead of and during the 250th anniversary celebrations, which are set to draw large crowds to the National Mall and other tourist sites.

Trump also said Tuesday that “some of the water” will be drained from the pool “either immediately before or after the Fourth of July, to do the permanent repair.”

It was unclear from his post what the scale, scope or cost of the permanent repair would be.

Atlantic Industrial Coatings, a contractor on the pool project, said it has identified some areas in the Reflecting Pool that require repairs. “These areas are a very small part of the massive 7-acre project, and do not indicate a failure of the liner,” the company said in a statement. The company said it expected to make the repairs to the pool once it is drained, as part of the warranty.

Environmental group wades in after duckling found dead

Adding to the controversy swirling around the pool, an environmental group called on the U.S. Fish and Wildlife Service to investigate after a Mallard duckling carcass was photographed floating in the algae-filled pool, and two other ducks were found dead nearby. The Center for Biological Diversity said Tuesday that the Wildlife Service must enforce the Migratory Bird Treaty Act, which protects migratory birds.

“Wasting taxpayer money turning the reflecting pool into a giant duck death trap just in time for America’s 250th birthday party is as Trump as it gets. Cruel, stupid and selfish,” said Tara Zuardo, a senior campaigner at the Arizona-based group.

City Wildlife, a Washington-based rescue and rehabilitation non-profit that also conducts necropsies on birds found in the city, said they could not comment on the cause of the death of the duckling because its carcass “wasn't recovered for examination.”

Renovation project plagued ahead of the 250 celebrations

Trump pitched the original improvements as intended to clean, beautify and reinforce an iconic site that he said had become dilapidated and dirty because of previous presidents’ neglect. Algae has plagued the pool for a century, and Trump insisted that the newly installed “American flag blue” coating, which he selected himself, would turn the pool into a gleaming expanse along the National Mall.

Yet within weeks of Trump declaring the rehabilitation completed in time for Independence Day, the water was plagued by a vivid green algae bloom that clouded the pool’s coating. A piece of liner, about 4 square feet, was observed on Friday, partially floating in the pool. The Associated Press saw additional pieces in the water on Monday.

Workers were seen in recent days pouring hydrogen peroxide into the pool in an attempt to kill the algae. Hydrogen peroxide can act as a paint remover.

Experts say the dark lining can add to algae growth by absorbing more sunlight than lighter surfaces. That raises the surrounding water temperature, allowing algae to thrive.

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Associated Press writer Josh Boak contributed to this story.

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