SHEFFIELD MURDER: Everything we know so far

CRIME: Armed police called to Sheffield estate after stabbing- Emergency services were alerted to the stabbing in Tannery Close, Woodhouse, at 11.10pm yesterday.

- A 19-year-old man was seriously injured and was rushed to hospital but could not be saved and was pronounced dead in the early hours of this morning.

- A girl, aged 17 and a man, 22, have both been arrested on suspicion of murder and remain in police custody this morning.

- The murder victim has not yet been named but his family has been informed of the death. Relatives are being supported by specialist police officers.

- The air ambulance was spotted landing close to the crime scene last night.

POLICE: Man in hospital after stabbing in Sheffield street- A huge police cordon is in place around the flat where the injured man was found. The police tape extends to the street outside, a car park and nearby Tannery Park.

- The crime scene is under police guard with members of the public prevented from entering.

- Police forensic experts are expected to arrive at the scene this morning.

- Armed police officers were spotted in and around Tannery Close last night in the wake of the stabbing.

- Detectives investigating the murder want to hear from anyone who saw or heard anything suspicious last night.

- Detectives are carrying out a number of investigations into stabbings in Sheffield over recent months, with a man attacked on City Road, Norfolk Park, on Tuesday, May 22.

- A 21-year-old man was stabbed in an eight man brawl outside a barber shop on Abbeydale Road, Sharrow, on Saturday, May 12 and the week before a 30-year-old man was taken to hospital with life-threatening injuries after being stabbed inn his head and neck at the Genting Casino in Charles Street on Saturday, May 5.

- On Tuesday, April 17, a 29-year-old man was stabbed at a property on Burgoyne Road, Walkley and on the same day a 30-year-old was stabbed in Batemoor Place, Batemoor.

That same month a man was stabbed in his shoulder during an argument on Abbeyfield Road, Pitsmoor.

- Anyone with information about the murder should call South Yorkshire Police on 101 and quote incident number 1,030 of May 22.