The victim, believed to be 18 years old, died just before 11.30pm.
A man in his 20s has been arrested on suspicion of murder and is in custody at a south London police station.
So far no one has been arrested in connection with the stabbing.
On the same evening, Amaan Shakoor, 16, became the youngest murder victim of the year so far when he was shot in an attack in Walthamstow.
In total, Scotland Yard is investigating more than 50 suspected murders that have taken place this year.
This comes a day after two other people were stabbed to death within minutes of each other in separate domestic incidents in the capital. When they arrived to the scene, they found the victim, Christopher Miles, dead.
This incident is believed to be the twelfth suspected murder case involving teenagers in the capital since the beginning of 2018.
Her next-of-kin have been informed, police said.
London's murder rate has risen 40 per cent in only three years, and was higher than the homicide rate in NY for the first time in history in February of this year.
A Metropolitan Police spokesman said: "Formal identification and a post-mortem examination will be arranged in due course".
Several hundred people sat or lay down on pavements on Monday, blocking roads leading to the parliament building and universities. Nikol Pashinyan called on friends and relatives of the detainees to block streets and avenues of the capital city.
Band members thanked fans as they accepted their award after a speech from Ann Wilson , who praised their "natural intelligence". The ceremony will air as an edited special on HBO May 5, but you can also see their backstage press room chat below.
Gusty northerly winds are expected through the day as well, which may create areas of blowing and drifting snow. Eventually it will turn cold enough late Sunday for rain showers to change to snow showers in southern MI .
One Flew Over the Cuckoo's Nest (1975 ), adapted from Ken Kesey's 1962 novel, dealt with life inside an OR mental institution. At the time, Forman was in Paris, in negotiations for Taking Off , a US production about the youth protest movement.
He was expected to miss 2-4 weeks, meaning he could return close to the beginning of the playoffs or after the first round. Embiid was a spectator in Game 1 of the first-round series because of a broken orbital bone around his left eye.
Manchester City could still miss out on winning the Premier League title this season, says manager Pep Guardiola . Now we have in front of us the most important title in the season by far. "We have to do it tomorrow".
According to Malema, in the 1980s the UDF called a press conference to distance itself from Madikizela-Mandela. In 1977, she was banished to a remote town to separate her from the heart of the movement she led in Soweto.
Pence praises Peru's stand on Venezuelan crisis
Vice President Mike Pence will represent President Trump at the Summit of the Americas in Lima, Peru , on April 13-14. He's also expected to urge Latin American allies to maintain pressure on Venezuelan President Nicolas Maduro .
Allegiant Air feels impact of damaging '60 Minutes' report
The FAA on April 13 said it "has not identified any significant or systemic problems with Allegiant's current operation". Whitmer went on to say, OWB employees are constantly trained by the airline on safety measures and customer service.
Ricciardo Wins Chinese F1 Race
Sometimes I question why I chose this sport. "But that when you get a day like this, it's worth 50 of those bad ones". Ricciardo, who had to have his blown engine rebuilt on Saturday ahead of qualifying, started from the third row.
USA at UN Makes Case for Military Action Against Syria
President Donald Trump said on Thursday he was holding meetings on Syria and expected to make decisions "fairly soon". The Downing Street statement did not mention parliament, and a spokeswoman did not comment on those reports.
Sunny and warm through Friday, watching weekend storms
The strong winds will also keep temperatures well above average, reaching the upper 70s again on Thursday afternoon. Precipitation will start mainly as rain after midnight in Central Wisconsin, then begin to track north .
Blizzard warning area expands to take in Sioux City
Denver will sit on the western edge of potential blizzard conditions developing on the adjacent plains by Friday afternoon. Area school, including RE-1 Valley and Merino, called off school for today yesterday based on anticipated conditions.
40000 bid Winnie Mandela final goodbye
Condolences have poured in from around the world in remembrance of one of the 20th century's most prominent political activists. In his fiery attack on those Malema said betrayed Madikizela-Mandela, EWN has put together five key points from his speech.