Three people drowned, at least six were missing and scores of others were rescued in three separate incidents of migrants trying to reach Greece across the Aegean Sea early Friday.

The coast guard said that 13 people were rescued after the wooden boat sank in mild weather conditions before dawn Friday. A search was launched for the missing migrants.

Fifteen people, 10 men, four women and a child, were rescued, and Greek coastguard vessels were searching for another six to eight people missing, a Greek coastguard official said.

The Turkish coastguard said it recovered another two bodies on its side of the maritime border, and that the boat was carrying 27 people. Rescue operations in Turkish waters were ongoing, it said.

The departure point of the boat and the nationality of those on board was not immediately clear.

Separately, Greece rescued 127 migrants and refugees off Chios island on board two boats in distress earlier on Friday, the coastguard said.

Greece has seen a spike in arrivals of migrants and refugees in recent months — rising to an average rate of 200 per day, according to the government. Greece says that a 2016 agreement between the European Union and Turkey to combat migrant trafficking is currently not in danger of collapsing, despite a strain in relations between the EU and Ankara.