A post mortem was due to be carried out today after a teenager was fatally stabbed in Sidcup.

Rob Knox, 18, of Sidcup was taken to the Queen Elizabeth Hospital, Woolwich following reports of a major disturbance at the Metro bar in the town.

He was one of four men to suffer stab wounds in the attack just after midnight on Saturday, and was later pronounced dead.

A second victim,21, was stabbed in the neck, but his injuries are not thought to be life-threatening.

A 16-year-old was stabbed in the chest, but he has been discharged from hospital.

The fourth and fifth men, both 21, were injured to the face, but both later discharged.

The fifth man, who was not stabbed, has been arrested on suspicion of murder and taken to a South London police station, where he was today in custody.

Officers from the Homicide and Serious Crime Command are investigating.

DCI Damian Allain, leading the investigation, said:

"Rob was a popular and talented young man who lost his life in the most tragic of circumstances.

"I urge anyone who was in or around the bar at the time of the attack and witnessed anything to get in touch."

Ch Supt Tony Dawson, Bexley Borough Commander, said:

"This was a tragic incident and our thoughts are with Robert's family and friends at this time.

"Tackling violent crime remains a priority for us but fortunately incidents like this are rare in Bexley, which remains one of London's safest boroughs."

Anyone with information is asked to contact the incident room on 020 8721 4805; if you wish to remain anonymous, call Crimestoppers on 0800 555 111.