Authorities say a young boy was stabbed to death while walking home from school in Texas.

Police say the boy was walking down a street in Houston on Tuesday afternoon when an unidentified man walking the opposite direction stabbed the child repeatedly before running away from the scene.

Relatives of the boy told local media outlets he was 11. Authorities have not released the boy's name or age.

Houston police Sgt. Tommy Ruland says the attack was "unprovoked." The suspect is still being sought by police, and the investigation is ongoing.