The United States and its European allies are expelling dozens of Russian diplomats in a co-ordinated response to the poisoning of a former Russian spy in the UK.

The US has ordered 60 Russian diplomats to leave the country.

The UK announced it was expelling 23 Russian diplomats earlier this month.

More than 20 countries have aligned with the UK, expelling more than 100 diplomats.

This is said to be the largest collective expulsion of Russian intelligence officers in history.

Former Russian spy Sergei Skripal, 66, and his daughter Yulia, 33, were poisoned in Salisbury earlier this month, sparking a huge international fallout.

Who has expelled diplomats? (Source: EveningStandard UK)

United States: Sixty Russian diplomats expelled, Russian consulate in Seattle closed

Canada: Four expelled, three applications for additional diplomatic staff being denied

Ukraine: Thirteen Russian diplomats expelled

Germany, France, Poland: Four Russian diplomats expelled from each country

Czech Republic, Lithuania: Three Russian diplomats expelled from each country

Netherlands, Denmark, Italy, Albania: Two Russian diplomats expelled from each country

Sweden, Croatia, Romania, Finland, Estonia: One Russian diplomat expelled from each country

Latvia: One Russian diplomat expelled, plus one Russian representative of a Russian company blacklisted