Greek authorities said two more refugees or other migrants have drowned in two separate incidents as thousands of people continue to cross over from Turkey in frail boats seeking a better life in Europe, AP reported. The coast guard said one man was found dead on the eastern Aegean Sea island of Chios early Monday. Further north, on the island of Lesbos where most migrants head for, a woman drowned and a further 40 people were rescued from an inflatable dinghy that ran into trouble off the coast. Three migrants drowned off Lesbos on Sunday, while seven remain missing. More than 500,000 migrants have entered Greece so far by sea from Turkey, and more than 120 have drowned.