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The 32-year-old was arrested on suspicion of attempted murder after a 54-year-old man arrived at the Northern General Hospital with stab wounds.

A short time before the injured man arrived at A&E, a disturbance on Lyons Road, Pitsmoor, was reported to South Yorkshire Police.

Detectives believe the man was injured in that incident.

He remains in hospital in a critical condition this morning.

Last Saturday afternoon, a 21-year-old man was seriously injured in a stabbing on neighbouring Lyons Street.

When officers arrived to deal with the incident, they found evidence that a gun had also been fired in that street.

Nobody has been arrested over the earlier incident.

Anyone with information on either stabbing should call South Yorkshire Police on 101 or Crimestoppers, anonymously, on 0800 555111.

Man released under investigation after arrest over Sheffield stabbing