[Sky Witnesses Distressing Migrants Rescue]Sky News has filmed distressing footage of the ongoing human toll of migrants trying to cross into Europe, with three children drowning in one incident last night. Their bodies were pulled from the Aegean Sea after their boat capsized in freezing waters en route from Turkey to the Greek islands. Sky's Lisa Holland and cameraman Mostyn Price were on board for the night-time patrol by charity MOAS (Migrant Offshore Aid Station).