Sergei Skripal

A senior Foreign Office official told the Salisbury inquiry that such an operation would have required authorisation ‘at every level’.

ITV News' Chloe Keedy reports from the Novichok inquiry, where a senior Met Police officer spoke of the search for where Sergei and Yulia Skripal were poisoned.

The flat where a woman was fatally poisoned with the nerve agent Novichok is being demolished - more than two years later.