From @IAFF36 at 8:23pm Sunday night:

“Stabbing – 1500blk C St SE – male stabbed, treating & transporting to trauma center #DCFD”

Update from MPD:

“The victim walked to the firehouse on C Street and reported that he had been assaulted at 15th & C Streets NE. The victim reports an unknown person stabbed him in the back of the leg and left the scene. The victim did not wish to provide any additional information.”