Migrants protesting at an overcrowded camp on the Greek island of Lesbos set fires and clashed with police on Sept. 29, killing at least one person, authorities said, Associated Press reports.
A burned body was brought to a local hospital and there is information about an unconfirmed second death, police said. The protesters were demanding to be transferred to the Greek mainland.
"The situation is tense," Lesbos mayor Stratis Kytelis told The Associated Press earlier. "There is information about a dead mother and her child. We haven't been able to confirm that yet."
UNHCR Greece later tweeted that "we learned with deep sadness that the lives of a woman and a child were lost in a fire on (Lesbos) today."
Greek police spokesman Lt. Col. Theodoros Chronopoulos told the AP that the migrants set a blaze at an olive grove outside the camp just before 5 p.m. (1400 GMT; 9 a.m. EDT) and, minutes later, inside the camp. Kytelis said that both fires were later extinguished.
Police said Deputy Citizen Protection Minister Lefteris Oikonomou, a former chief of the Greek police, was going to Lesbos.
About 12,000 migrants, most of them Afghans, are housed in a space designed for 3,000.
