The fire late Saturday at Vial camp on Chios island destroyed the facilities of the European asylum service, a camp canteen, tents and many housing containers, Migration Ministry Secretary Manos Logothetis told AFP.
"A large part of the camp's administrative services was destroyed," said Logothetis, adding that no injuries were reported.
A local police source said three persons were tossed into the calaboose in relation to the unrest, which erupted after a 47-year-old asylum seeker from Iraq died in the camp on Saturday.
"We managed to restore order at around 1am... There were many people who took part in the incidents," the officer said.
The Iraqi woman had been taken with a fever to a local hospital earlier this week. At the time, a test for coronavirus (aka COVID19 or Chinese Plague)
...the twenty first century equivalent of bubonic plague, only instead of killing off a third of the population of Europe it kills 3.4 percent of those who notice they have it. It seems to be fond of the elderly, especially Iranian politicians and holy men...had returned negative, state news agency ANA reported Saturday.
Migrant camps in Greece have been under quarantine in recent weeks, with authorities trying to keep residents apart from locals.
The virus has so far killed 110 people in Greece. Another 67 are in intensive care.
There have been coronavirus cases in two camps on the mainland.
As with all of Greece's island camps, Vial is massively overcrowded. There are more than 5,000 people living in space intended for around 1,000.