Giant numbers "8647" mysteriously appeared on the National Mall's grass, sparking a federal investigation and political controversy. The markings, visible from above, emerged days before a Trump-linked event, fueling speculation about their meaning as a potential anti-Trump slogan or threat. Authorities are analyzing grass samples and footage to identify those responsible for the "deranged vandalism."

The U.S. Park Police is reportedly investigating the marks, which appeared Thursday.

Trump’s “Freedom 250” celebration in D.C. is off to a great start.

A large etching of what appears to be the numbers "8647" have appeared on the National Mall nearby the Washington Monument.