Russian diplomats were expelled from 14 EU states today in an unprecedented show of defiance to the Kremlin over the Salisbury attack.

EU Council President Donald Tusk revealed the coordinated action at a press conference in Bulgaria today. 

Germany, France and Poland each expelled four diplomats, which Lithuania, Lativa and the Czech Republic also took action. Ukraine - not an EU state - joined the European revolt by expelling 13 diplomats. 

Separately, the United States is expelling 60 Russians over the attempted assassination of Sergei Skripal as Moscow is frozen out of the international community. Canada followed suit by expelling three Kremlin staffers. 

Britain led the way in the aftermath of the March 4 attack by expelling 23 Russian diplomats from London. The Kremlin kicked out 23 Britons as a reprisal. 

A spokesperson for Prime Minister Theresa May said she "welcomes the action by our allies", adding that it demonstrates "we stand shoulder to shoulder in sending the strongest signal to Russia that it cannot continue to flout international law".

Foreign Secretary Boris Johnson hailed the "largest collective expulsion" in history and said it would help defend our "shared security".   

Russia"s Foreign ministry slammed the "provocative" expulsions and vowed to respond in kind.