Home Office on alert following 'unprovoked' knife attack
A bloodied stab victim went into the Home Office for help after being knifed in an "unprovoked" attack outside the Government building in central London.
One man (29) has been arrested on suspicion of grievous bodily harm after the assault on Marsham Street in Westminster.
The injured man, aged in his 60s, went inside the building, which was put on lock-down, following the assault at around 1pm on Thursday.
An image shared online showed a bloodied, topless man being helped by a police officer as well as someone from the ambulance service.
A man, who an eyewitness said may have been the perpetrator, was apparently seen putting an object into his bag and walking "calmly" down the road after the incident.
Home Secretary Priti Patel tweeted: "All my thoughts are with the victim and their family following horrific unprovoked knife attack on Marsham Street."