Emergency services, police and intelligence agencies will carry out the largest-ever rehearsal of a response to a terror attack across the city today. Exercise Strong Tower will involve more than 1,000 officers.
Police, emergency services, intelligence agencies and transport staff and agencies are taking part in a training exercise to test London's robustness to the event of a terrorist firearms attack.
Exercise Strong Tower has been planned since January, and will take place at different site across the city - including at Aldwych station close to the strand.
The unlicensed events unfolded on Saturday night at Clapham Common and Tooting Bec Common.
A 37 year old man who was taken to hospital after getting into difficulty in a stretch of water near Maidenhead has died.
Jonty Bravery, who is mentally ill, has been jailed for 15 years after throwing a six year old boy from the Tate modern balcony.