A political conference in Washington, DC, that bills itself as the alternative to the Trump-aligned CPAC was evacuated on Sunday after a death threat made against several of its speakers who have been critical of President Donald Trump.

A gathering of anti-Trump conservatives in Washington DC was evacuated on Sunday after receiving what officials with the organization called a “credible bomb threat ” they said was sent in by an account claiming to represent Enrique Tarrio, former leader of the Proud Boys.

The Principles First summit in DC — dubbed by some as the “Anti-Trump CPAC” — was interrupted by a bomb threat Sunday. The threat to the event came from an online poster with the moniker “Enrique T” — similar to the name of the ex-leader of the notorious Proud Boys,