The teenager and a 34-year-old man were found with stab wounds in Gleadless on Tuesday night.
A 14-year-old boy has been stabbed in Sheffield, police have said.
Officers were sent to an address in Landseer Close, in the Gleadless area, at about 23:30 BST on Tuesday, following reports shots had been fired. The boy, along with a man, 34, was taken to hospital, both with non life-threatening injuries "consistent with a stabbing", South Yorkshire Police said.Officers had discovered damage to a window "consistent with BB gun discharge", according to the South Yorkshire force.Follow BBC Yorkshire on
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