ANNAPOLIS, Md. (AP) — An investigation at the U.S. Naval Academy has found it is “unlikely” a rope and knot found over a door in a construction area was meant to be a noose, but the possibility could not be definitively ruled out.

The academy announced Friday that the rope resembled a common construction device used to hoist items, although it was draped over a door “for no readily apparent reason.”

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The academy says the investigation didn’t discover who placed the rope over the door or identify any existing racial animus on the job site.

The academy announced an investigation earlier this month after receiving notice from the Caucus of African-American Leaders. The caucus was contacted anonymously about the rope on Aug. 28, the 56th anniversary of the March on Washington.

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