A private car driver was charged with knifing two riders during an altercation in Georgetown Sunday night, when the riders apparently tried to leave his car and hail another taxi, according to documents filed in court.

U.S. Secret Service officers arrested Yohannes Getahun Deresse on two counts of assault with a dangerous weapon for an incident that happened in the 3000 block of K Street NW just after 6 p.m., according to charging papers filed in D.C. Superior Court.

The trouble began when four people got into a Lincoln Town car driven by Deresse, but his “aggressive manner” made them uncomfortable and they decided to leave the vehicle, the papers said.

Deresse and one of the passengers, a man, began to argue, and then fight, the papers said. Officers wrote that Deresse stabbed the man twice in the chest and once in the right arm. A second man suffered a lacerated finger when he tried to intervene.

The first stabbing victim was taken to George Washington University hospital as was Deresse, the papers said. He was treated and released for a scratch to his left ear and complaints of severe head pain.

Police said they recovered a silver knife, with blood residue on it, inside a door panel of the Lincoln, according to court documents.

It was not clear which company Deresse was working for at the time. A D.C Superior Court judge ordered him released from jail and to not have any contact with the alleged victim.

His preliminary hearing is scheduled for Sept. 25.