A man who said he was investigating the 'pizza gate' story, referred to as a conspiracy theory by Western media outlets, about Hillary Clinton running a child sex ring out of a pizza place fired an assault rifle inside the Washington, D.C., restaurant on Sunday injuring no one, police and news reports said.

Metropolitan Police Department spokeswoman Aquita Brown said police received a call Sunday afternoon about a male with a weapon on Connecticut Avenue, in an affluent neighborhood of the nation's capital.

Edgar Maddison Welch, 28 of Salisbury, North Carolina, walked into the front door of Comet Ping Pong and pointed a firearm in the direction of a restaurant employee, the Washington Post reported.

The employee was able to flee and notify police. Welch then fired the gun into the floor.

Police responded and arrested Welch without incident. They recovered an "assault rifle," Brown said. Welch was charged with assault with a dangerous weapon.

Two firearms were recovered inside the restaurant and an additional weapon was recovered from the suspect's vehicle, police said in a statement on Sunday evening.

The Comet Ping Pong is in a neighborhood of well-tended private homes and apartment buildings on leafy streets that lead to a mix of shops, restaurants and the Politics and Prose book store. The restaurant gained notoriety during the presidential campaign after fake news stories stated that Hillary Clinton and her campaign chief ran a child sex ring out of the restaurant, The New York Times and other news organizations have reported.

Welch told police he'd come to the restaurant to "self-investigate" the 'pizza gate scandal' that spread online during Clintontarget="_blank"'>