A bomb threat warning has been received relating to central London today (16 May 2011). The threat is not specific in relation to location or time.
The Metropolitan Police Service, City of London Police and British Transport Police are working closely together and all officers have been advised to be a highly vigilant to ensure the safety of London.
Policing operations and contingency planning remain under constant review and a wide range of overt and covert tactics will continue to be used in London.
At this time Londoners should continue to go about their business as usual but we encourage the public to remain vigilant and report any information about unusual activity or behaviour which may be terrorist-related to the confidential Anti-Terrorist Hotline on 0800 789 321.
In the event of an emergency always dial 999.
The threat level from Irish-related terrorism has not increased and remains at substantial meaning that an attack is a strong possibility. The threat level was raised in September 2010 from moderate to substantial.
This is lower than the overall threat to the UK from international terrorism which remains at severe.