UKRAINIAN President Petro Poroshenko convened a “war cabinet” yesterday after neonazis mobilised 10,000 armed thugs and threatened to march on Kiev.

Right Sector militants set up checkpoints on the outskirts of the capital late on Sunday to prevent state reinforcements reaching the western town of Mukachevo, where some 20 Right Sector gunmen had been encircled by security since a gun battle on Saturday.

The neonazi group, which played a central role in the Euromaidan protests that led to the coup in Kiev against president Viktor Yanukovych, has issued a list of five demands. If they were not met, the group said, it would march on Kiev.