Migrant deaths off Greek coast raise questions over quick official accounts  BBCMigrant boat collides with Greek coast guard vessel, 15 dead  DW.comCollision between Greek coastguard vessel, migrant boat kills at least 14  Al JazeeraTurkey challenges Greece’s authority to conduct rescue operation off Chios  eKathimerini.comGreek coast guard ship and migrant speedboat collide, killing at least 15 people  CBS NewsGreek doctors work to identify parents of injured migrant children after deadly collision  AP NewsFifteen migrants die after boat collides with Greek coast guard vessel off island of Chios  ReutersGreek authorities launch investigation into incident that killed 15 migrants  politico.euMigrant speedboat collides with coastguard off Greek coast, killing at least 15  Sky News