An incident with the previously hunger-striking illegal migrants camped out at the Hypatia mansion reportedly occurred at noon on Monday during their evacuation, with two of the migrants threatening to set themselves on fire in demand of full residency papers.

Several of the other migrants nevertheless intervened, preventing the two from dousing themselves with kerosene.

The 250-plus migrants, all from North African countries, reportedly headed back to Crete, from where they were brought to Athens last month by supporters in a bid to demand legalisation for all illegal immigrants in Greece.