United States President Donald Trump has deepened his divide with London Mayor Sadiq Khan following a blood 24 hours in the city.
Mr Trump posted a rant against the Labour mayor on Twitter, stating: "London needs a new mayor ASAP. Khan is a disaster - will only get worse!"
The president retweeted British far-right commentator Katie Hopkins as he embarked on the latest stage of his spat with Khan. In her original tweet, Hopkins referred to London as "stab city".
The tweet follows a violent night in the capital. Five people were stabbed and one shot in a series of unconnected of attacks. Three of those involved have died, the Metropolitan Police said multiple suspects have been arrested.
Sadiq Khan earlier said he was "sickened" following the deaths of the two teenage boys in south London, just minutes apart.
In a response to Mr Trump's tweet, a City Hall spokesperson said: "Sadiq is focusing on supporting London's communities & over-stretched emergency services.
"He has been in regular touch with senior Met police officers last night and throughout the day.
"His thoughts are with the victims' families. He is not going to waste his time responding to this sort of tweet."
The spat follows a series of fatal stabbings in the capital. On Friday evening, two teenagers were killed and three others were stabbed, leading to 14 arrests in Wandsworth, Plumstead and Clapham.
On Saturday afternoon, the Metropolitan Police said it had opened an investigation after a man was fatally stabbed in Tower Hamlets, bringing the number of deaths to three.
Two teenagers die minutes apart in separate attacks
Metropolitan Police were called to Wandsworth, south-west London, at 4.42pm on Friday night where the victim, believed to be in his late teens, was found stabbed.
He is yet to be formally identified.
Six males were taken to a west London police station for questioning.
A few minutes later at 4.54pm, armed police were called to Plumstead following reports of a shooting.
The victim, also in his late teens, was found with critical injuries and died at the scene.
Three men and a woman were arrested on suspicion of murder.
Teenager stabbed in Clapham during early hours of Saturday morning
Then at 3.22am on Saturday, police were called in Clapham. Three men were found with stab and slash injuries.
The condition of two of the men remains unknown. The third has injuries which are described as not life-threatening or life changing.
A source told ITV News that a cordon will remain in place around Clapham High Street until they know if the attack is fatal.
Four men have been arrested in connection to the incident.
Investigation launched after fatal stabbing in Tower Hamlets
An investigation has been opened after a man, aged in his 30s, was stabbed to death in Tower Hamlets.
The incident happened on Saturday afternoon, with the man pronounced dead shortly after 2.30pm.
A crime scene has been established and whilst officers from the borough investigate.
Enquiries are underway to notify next of kin with a post mortem due to take place to establish the cause of death.
London mayor "sickened" by violent deaths
Mr Khan said: “I am sickened to hear that two young lives have been ended within minutes of each other in Wandsworth and Greenwich.
“Our overstretched police are working around the clock to keep Londoners safe. They need our support to end this scourge of violence.
“Anybody who has information about what happened either in Wandsworth or Greenwich should do the right thing and call the police.”
Tooting MP Rosena Allin-Khan said the suspected murder on Deeside Road in Wandsworth was “heartbreaking” and “absolutely tragic”.
“My heart goes out to the family of this victim after this absolutely tragic incident,” she wrote on Twitter.
“I spoke at length with people on the Aboyne Estate tonight, anyone with concerns can contact me – I’m here to listen.
“Sending love to the Tooting family tonight – this is heartbreaking.”