An argument at a bus stop in Northeast Washington Thursday evening ended with a woman fatally stabbing an acquaintance, according to D.C. police.

The altercation occurred about 6:30 p.m. in the 300 block of Bryant St., NE., in the Edgewood community three blocks north of Rhode Island Avenue.

Officer Araz Alali, a police spokesman, said officers arrived to find the victim, Paul Lawrence Morris, 49, of Northeast, lying injured on the street. Alali said Morris died shortly after arriving at a hospital.

Alali said police quickly arrested a suspect, identified as 49-year-old Quindetta Cosby of Northeast. She was charged with second-degree murder while armed.

Lt. Robert Alder, the commander of the D.C. police homicide unit, said the Cosby told detectives that Morris had assaulted her during a heated argument. Police said she then stabbed him.

Cmdr. Andrew Solberg, who leads the 5th District, posted on an Internet community board that “this was not a random act of violence.”

This Post has been updated.