A cultural preservation organization filed a federal lawsuit Monday challenging the Trump administration's ongoing modification of the reflecting pool on the National Mall in Washington, D.C.

The Cultural Landscape Foundation filed suit in federal court, arguing that the administration's effort to repaint the historic reflecting pool "American Flag Blue" violates federal procedures. The nonprofit contends the resurfacing work is unlawful and should be halted until proper Congressional mandates are followed.

According to court documents, the foundation is seeking to have the pool restored to its original color while the administration complies with required procedural steps for such modifications to historic federal properties.

The lawsuit comes as the Trump administration has pursued various modifications to federal properties and monuments in the nation's capital. The reflecting pool is part of the National Mall, which serves as a central gathering place for national events and tourism.

The administration has not yet publicly responded to the lawsuit. The case highlights ongoing tensions between preservation groups and federal officials over changes to historically significant sites in Washington.