The Lincoln Memorial Reflecting Pool in Washington has turned green with algae only days after reopening following a renovation project promoted by US President Donald Trump.

National Park Service crews were deployed to the site on June 16, using pumps, vacuum equipment and cleaning stations set up along the pool to remove algae from the water and the newly painted bottom.

Workers were seen vacuuming large patches of algae that had spread across the surface and floor of the pool.

The renovation, which cost more than $14 million according to public records, included repainting the bottom of the iconic reflecting pool in what Trump described as “American flag blue.”

Despite the cleanup effort, algae quickly returned, turning much of the water green.

Tourists continued to visit the site, taking photos and selfies as maintenance crews worked nearby.