A Muni patron who allegedly threatened to stab a streetcar operator after multiple buses passed him was detained by police on Market Street, after they learned that the rider had an outstanding warrant for a previous incident.

As reported by KRON 4's Stanley Roberts, who caught the aftermath of the alleged altercation on video, a driver on Muni's historic F streetcar line flagged down police after he says a patron (who identified himself as "Russell") threatened to cut him and refused to pay his fare.

Saying that two previous buses had passed him as he stood on a Mid-Market Muni platform, Russell admits that he ran to the front of the streetcar and banged on the door, demanding to board.

"What happened is what happens every day and every night in this city to people of color, it seems like," Russell told Roberts.

"The drivers, they won't stop for us unless they're maybe a professional person also standing there. They'll stop then."

According to Russell, who remained on the scene as officers with the San Francisco Police Department were summoned, he did not threaten the F driver. Roberts reports that officers who questioned other riders on the streetcar could not find a witness to support the driver's allegations.

However, Roberts reports that Russell had an outstanding warrant on an unrelated charge, so he was taken into custody and transported to SFPD's Tenderloin Station. He will not face charges for the alleged threats that started the incident, Roberts reports.