'I heard two people got stabbed and apparently one man was shouting Allahu Akbar but people thought he was just a crazy man, so he got away. Apparently he had two rucksacks.'

A shop owner, who asked to remain anonymous, told Sky News that the man had taken a knife from a high street shop before the attack.

London knife crime hits record high with more than 15,000 offences in a year  
 
Knife crime in London has risen to a new high amid a nationwide surge in blade-offending, official figures revealed today.
 
The Office for National Statistics said that 15,080 knife offences were recorded in the capital during the 12 months to the end of last September.
 
It amounts to a two per cent rise on the previous year and indicates the Met’s efforts to bear down on the problem are having only limited effect.
 
The bleak statistics came as national figures released by the ONS showed a seven per cent rise in knife offending across England and Wales to 44,771 blade crimes, an average of more than 120 incidents a day.
 
In London, the only encouraging sign was an 18 per cent drop in fatal stabbings, which represented 16 fewer blade killings than the year before. But that still left a total of 71 knife homicides for the year.
 
The statistics also show there were 98 attempted knife murders, 805 threats to kill with a blade, and 166 rapes or sexual assaults by a knife-carrying attacker.

Basic laws on knives
 
It’s illegal to:
 
    sell a knife to anyone under 18, unless it has a folding blade 3 inches long (7.62 cm) or less
    carry a knife in public without good reason, unless it has a folding blade with a cutting edge 3 inches long or less
    carry, buy or sell any type of banned knife
    use any knife in a threatening way (even a legal knife)

Banned knives and weapons
 
It is illegal to bring into the UK, sell, hire, lend or give anyone the following:
 
    butterfly knives (also known as ‘balisongs’) - a blade hidden inside a handle that splits in the middle
    disguised knives - a blade or sharp point hidden inside what looks like everyday objects such as a buckle, phone, brush or lipstick
    flick knives (also known as ‘switchblades’ or ‘automatic knives’) - a blade hidden inside a handle which shoots out when a button is pressed
    gravity knives
    stealth knives - a knife or spike not made from metal (except when used at home, for food or a toy)
    zombie knives - a knife with a cutting edge, a serrated edge and images or words suggesting it is used for violence
    swords, including samurai swords - a curved blade over 50cm (with some exceptions, such as antiques and swords made to traditional methods before 1954)
    sword-sticks - a hollow walking stick or cane containing a blade
    push daggers
    blowpipes (‘blow gun’)
    telescopic truncheons - extend automatically by pressing button or spring in the handle
    batons - straight, side-handled or friction-lock truncheons
    hollow kubotans - a cylinder-shaped keychain holding spikes
    shurikens (also known as ‘shaken’, ‘death stars’ or ‘throwing stars’)
    kusari-gama - a sickle attached to a rope, cord or wire
    kyoketsu-shoge - a hook-knife attached to a rope, cord or wire
    kusari (or ‘manrikigusari’) - a weight attached to a rope, cord, wire
    hand or foot-claws
    knuckledusters

Streatham terror attack: Three injured and man shot dead in south London
The attacker was under police surveillance and the incident was Islamist-inspired, says Sky's security correspondent.

The man was released from prison just days ago after serving half of a three-year sentence for spreading extremist material, Sky News understands.

The terrorist was a 20-year-old man from Harrow named Sudesh Amman.
 
He was released from prison just days ago after serving half of a three-year sentence for spreading extremist material.

The court heard Amman also wrote of how he was thinking of conducting a terrorist attack at 'Queensbury' and had conducted reconnaissance.

Extremist, 18, laughs as he is told he faces years in jail after using family WhatsApp group to share al Qaida magazine with his five younger brothers in bid to radicalise them
    Sudesh Mamoor Faraz Amman, 18, from London tried to radicalise his family
    The Harrow teenager was attempting to share al-Qaeda magazine 'Inspire'
    He shared bomb-making instructions with a person he was in a relationship with  
    Amman will be sentenced next month over the terror material messages  

The document, an al-Qaeda magazine called Inspire, edition 16, was sent to the group, which also included extended family members in Sri Lanka.
It encouraged readers to launch lone wolf attacks following pipe bomb attacks in New York and New Jersey in September 2016.

The magazine was thought to be the work of Anwar al-Awlaki, an English-speaking cleric and al-Qaeda leader based in Yemen. Awlaki was on the United States' "kill or capture list".[12][13][14][15] An editorial by al-Awlaki, entitled May Our Souls Be Sacrificed For You appeared in the first issue.[16] In the article, al-Awlaki called for attacks against all those who had slandered the Islamic prophet, Muhammad, including all Western targets.[17]

Police linked the online post to Amman and arrested him in May.