A manhunt has begun after Comet Ping Pong, the Washington, D.C. pizzeria at the center of the infamous and false far-right “Pizzagate” conspiracy theory, was the subject of an arson attack last week.

The Bureau of Alcohol, Tobacco, Firearms and Explosives tweeted on Friday two photos of the alleged arsonist, who is the main suspect in the incident from Wednesday. The bureau also added a contact number.

According to The Washington Post, the suspect left behind several charred matches and lighter fluid by the curtains set he lit on fire. No one was injured during the incident.

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The Pizzagate conspiracy theory arose in late 2016, around the time of the presidential election. It claimed the Comet Ping Pong was secretly an underground child sex trafficking ring run by Hillary Clinton and her then-campaign chairman John PodestaThe theory was debunked as fake news, but in December 2016 a man from North Carolina was arrested after he entered the restaurant with an assault rifle and fired several shots. Nobody was injured in that incident. The perpetrator in that case, Edgar Maddison Welch, pleaded guilty to assault and a federal firearms charge in 2017 and was sentenced to four years in prison.

Authorities in Washington said they found no evidence to link last week’s fire to the 2016 attack on Comet Ping Pong, or proof of whether the most recent perpetrator believed in the Pizzagate conspiracy. The theory was pushed by many far-right political commentators like Infowars radio host Alex Jones