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UK calls for UN meeting over spy attack Russian spy: UK to brief UN on former Russian spy attack
(35 minutes later)
The UK has called for an urgent meeting of the UN Security Council to update members on the investigation into the nerve agent attack in Salisbury, the Foreign Office has said. The UK has called for an urgent meeting of the UN Security Council to discuss the poisoning of a former double agent in Salisbury, the Foreign Office says.
Russia insisted it had "no motive" in the attempted murder of Sergei Skripal and his daughter Yulia. Russia failed to respond to a midnight deadline set by Theresa May to explain how a Russian-made nerve agent was used on Sergei Skripal and daughter Yulia.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version. The PM is set to announce a series of measures against Russia ahead the UN meeting, expected this evening.
You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on Twitter to get the latest alerts. Russia said it had "no motive" in the attempted murder of the pair.
The Kremlin, which has consistently denied involvement, said any steps by the PM would lead to "retaliatory measures".
Mrs May, who has been briefed by senior intelligence chiefs in Downing Street, is due to give an update to MPs.
The Foreign Office said the incident in Salisbury on 4 March, which left the Skripals critically ill, "follows a well-established pattern of Russian state aggression".
Det Sgt Nick Bailey also fell ill responding to the incident, and is in a serious but stable condition, but is thought to be improving.