Officials were notified of the incident at 19th Street and Benning Road NE at 9:45 a.m., a Metro spokeswoman said.
Two people on the westbound bus were hurt. It’s not immediately known whether the driver was injured, Metro said.
No information on a suspect was provided.
X2 riders told officials earlier this month that they’re frustrated with delayed service, disruptive passengers and impolite drivers, as Hill Now reported.
“Any time you get on the X2, you get a show,” a WMATA street operations supervisor admitted.
Ridership on the line has climbed an estimated 14 percent in four months.