The Metro Transit Police Department is investigating a stabbing where one victim was critically injured Saturday evening.

Police and the District of Columbia Fire and Emergency Medical Services Department responded to a Metrobus stopped at the intersection of Wisconsin Avenue NW & 34th Street NW around 5:45 Saturday evening. One man was transported to an area hospital with injuries believed to be critical, according to the Transit Police.

Several Metro Transit Police units remained on scene with the bus for several hours Saturday; further details could not be immediately confirmed.