A Croydon man has been arrested on suspicion of murder after a man in his 30s was stabbed to death in east London on Saturday.

On Saturday afternoon, police officers and London Ambulance Service attended reports of an injured man at Alton Street in Tower Hamlets, east London, just before 2pm.

The victim was pronounced dead at the scene - a field next to a children's nursery and a mosque - 40 minutes after police were called to Alton Street, Tower Hamlets.

Officers arrested a 28-year-old man on suspicion of murder in Croydon on Sunday and a 33-year-old man on suspicion of murder shortly before midnight on Saturday.

The death was one of four suspected murders to occur in the capital over the same number of days.

A weekend of violence saw police pelted with missiles by hostile crowds near Westfield shopping centre in Stratford, east London.

A female officer also had her head repeatedly smashed against a wall as she tried to arrest a 14-year-old boy in Streatham, south-west London.

The latest homicide victim, a man in his 40s, was stabbed to death in Whalebone Lane, Stratford, in the early hours of Monday.

This followed three homicides in the space of 24 hours, including two teenagers who were killed at teatime on Friday.

An 18-year-old, named in reports as Cheyon Evans, was found stabbed on Deeside Road in Wandsworth, south-west London, at 4.42pm, and died at the scene.

Two people, a 17-year-old from Merton, who cannot be named for legal reasons, and Mohammed Nadir Dafallah, 18, from Wandsworth, have been charged with murder and will appear in court on Monday.

In the second killing, Eniola Aluko, 19, from Thamesmead, south-east London, was shot dead in Hartville Road, Plumstead, shortly before 5pm.

The spate of attacks led to criticism of Sadiq Khan from Donald Trump, who called the London mayor a "disaster".

Retweeting a post by right-wing commentator Katie Hopkins about the killings, the president said the capital needed a new mayor "ASAP".

The original post by Hopkins called the capital "Stab-City" and "Khan's Londonistan" alongside two screenshots of BBC News articles detailing the violence.

A City Hall spokesman said Mr Khan was focusing on supporting communities and he was "not going to waste his time" responding to the president's tweet.