An 18-year-old has been arrested at a home in Mitcham in connection to the fatal stabbing of a man at Parsons Green.

Omid Saidy, 20, was murdered on October 16 in an attack that saw three people (including Omid) stabbed near Parson's Green Station.

The 18-year-old was arrested on October 19.

Two women and one other man (ages currently unknown) were also arrested at the Mitcham home on suspicion of assisting an offender.

All four have been taken into custody at a central London police station.

Two other people were taken to hospital following the incident on Monday; A 16-year-old and a second-18-year-old.

The 16-year-old was arrested following his release from hospital. He was charged with murder and possession of a pointed or bladed article.

The second 18-year-old remains in hospital but has been arrested on suspicion of affray.