Nearly 540 migrants crammed on a sailing boat were rescued early Friday south of the island of Crete, the Greek coastguard said.The 539 would-be asylum seekers were rescued by a patrol vessel of EU border agency Frontex near the small island of Gavdos in the Libyan Sea, a coastguard spokeswoman told AFP.So far, the coastguard has recorded nationals from Bangladesh, Pakistan, Egypt, Eritrea, Somalia, Sudan and the Palestinian territories aboard the boat, the spokeswoman said.They will first be taken to the Cretan city of Rethymno, she added. Under standard EU procedure, all will undergo health checks before having their asylum...