The Czech Republic admitted the possibility of expelling all Russian diplomats from Prague in the tit-for-tat expulsion of diplomats, Tass news agency reported on Tuesday.

Czech Republic's Foreign and Interior Minister Jan Hamacek earlier in the day called on its EU and NATO partners to expel Russian diplomats in solidarity.

Hamacek said he would summon the Russian ambassador Wednesday to disclose further steps.

The central European country ordered 18 Russian diplomats out on Saturday, prompting Moscow to expel 20 Czech diplomats on Sunday in retaliation.

(With input from agencies)