At least 18 migrants attempting to cross the Mediterranean Sea in an inflatable boat died when it capsized south of the island of Crete, Greek authorities said yesterday. The half-sunken boat was located by a passing Turkish merchant vessel. Two survivors were rescued. A ship and a plane from European border agency Frontex, a Greek Coast Guard helicopter and three merchant vessels are taking part in the search operation. Authorities have not yet determined where the boat came from. Greece is a major entry point into the European Union for people fleeing conflict and poverty in the Middle East, Africa and Asia and fatal accidents are a common occurrence.