Tulane University Police say that a man who reported being threatened with a gun in the school’s Howard-Tilton Memorial Library on Friday has admitted to making the incident up.

In a campus-wide email, the school police department said that after a “lengthy interview,” they determined there was no aggravated assault.

“The alleged victim has admitted that he saw no weapon of any kind, was not threatened and, indeed, filed a false report,” the police said in a release.

There was never any altercation of any kind, said Tulane spokesman Michael Strecker.

The man had given a highly detailed description of his supposed assailants, claiming that both were African-American men in their early 20s, one wearing a white T-shirt and blue jeans and armed with a gun, the other with dreadlocks and red cargo shorts.

The man will not be charged with filing a false police report, Strecker said, due to “extenuating circumstances.” He declined to elaborate.

According to the police, the man who made the crime report was not affiliated with the university.