A man with a Palestinian flag has climbed part of Elizabeth Tower at the Houses of Parliament in Westminster, central London. Police and crews from the London Fire Brigade are at the scene.
The man is live streaming from the tower on social media, shouting "I'm not going anywhere" and chanting "free, free Palestine". Bridge Street, at the north end of Westminster Bridge, has been closed to allow emergency services to resolve the incident.
A Met Police spokesperson said: "At 7.24am on Saturday March 8 officers were alerted to a man climbing up the Elizabeth Tower at the Houses of Parliament. Officers are at the scene working to bring the incident to a safe conclusion. They are being assisted by the London Fire Brigade and the London Ambulance Service."
A witness posted a video on social media showing a number of emergency service vehicles parked outside the Palace of Westminster. They wrote: "Good morning from Westminster Bridge where just before 8am a barefoot man with a Palestine flag climbed up part of the Elizabeth Tower. The road is closed."
The man remained there all day and into the evening, despite the efforts of emergency crews to try and persuade him to get down.
We will be closing the live blog down but will be bringing you more from 7am.