By CBS3 Staff

PHILADELPHIA (CBS) — Police are investigating after a 25-year-old man was fatally stabbed in Northeast Philadelphia. The stabbing happened on the 6700 block of Sylvester Street just before 4:40 a.m. Sunday.

Credit: CBS3

Police say the victim was stabbed once in the chest by an unknown doer. He was pronounced dead on the scene.

No arrests have been made at this time.

Stay with CBSPhilly.com for updates to this developing story.