Two people have been hospitalised and are in a "critical condition" following a "senseless" knife attack at Kennington Underground Station in London last night, authorities have said.
One person was stabbed and another received slash wounds before the attacker - who is believed not to be known to the victims - fled the scene.
Emergency services were called to Kennington Station at around 10.35pm last night after receiving reports a man had been stabbed on one of the platforms.
Another victim was injured after heroically trying to intervene to prevent the attack, police said.
Images from Kennington Station the day after the shocking attack
GB News
A major manhunt for the suspect was launched by authorities which resulted in the arrest of a man in his 30s.
A British Transport Police (BTP) spokesperson said: "The injured victims were taken to hospital, where they remain in a critical but stable condition."
BTP Detective Inspector Paul Attwell said: "We understand that people will be worried by this senseless attack.
"Our teams have been working throughout the night, aided by CCTV footage, forensics and detailed accounts from witnesses at the scene.
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Emergency services were called to Kennington Station at around 10.35pm last night
PA/Google
"We believe that one of the victims was injured after bravely stepping in to try to prevent the attack."
Police have urged members of the public with any helpful information to contact British Transport Police by texting 61016 or calling 0800 40 50 40, quoting reference 728 of March 27.
Speaking to GB News, Kennington locals reacted to the attacks; one told us: "Sometimes, when I'm walking home, I feel a bit scared - I'll even turn around to see if there's anyone behind me. [It's] not really safe - as a girl, especially, it's not easy to walk around by myself."
Another said: "I heard it all last night. It's getting very scary - I'm in two minds to keep getting on the trains and tubes."
A pair of women from North London said: "[In the] daytime, I'm not too bad - but in the nighttime, I wouldn't go out... I wouldn't travel."
When asked if knife crime in the capital had got worse, one woman told GB News: "Yes, it's got worse... [Knife crime] is an everyday thing now, everyone's used to it."