The move comes over the nerve agent attack on a former double agent in England (File)
Britain will expel 23 Russian diplomats over the nerve agent attack on a former double agent in England, Prime Minister Theresa May told lawmakers on Wednesday.
The diplomats "have been identified as undeclared intelligence officers," May said, giving them one week to leave the UK in the "single biggest expulsion for over 30 years".
More details awaited.