A reporter on the ground said the migrants were frustrated at being in refugee camps and wanted to leave the island, but on Friday the Greek government said they “would not be blackmailed” to relocate them.
Greek authorities said the fires in Moria appear to have been deliberately ignited after quarantine rules were imposed on residents who tested positive for coronavirus in Europe’s largest refugee camp.
One demonstrator had been hit by tear gas and was screaming angrily for her treatment in the camp.
The migrants sang “Freedom!”
The tensions come four days after the fires tore apart Moria, the largest refugee camp in Europe, displacing 13,000 people including thousands of children.
CNN has reached out to local police for details on Saturday’s riots, but has not yet received a response.
Refugees from the camp were left homeless and starving after the fires, some slept along roadsides and at gas stations while dozens of families took refuge in a nearby cemetery.
The director of the office of the Greek minister for migration, Konstantinos Kostakos, said the authorities would temporarily transfer around 1,000 migrants – particularly those belonging to vulnerable groups – to a ship that docked in Sigri on the western side of the island.