Hundreds of people stranded in northern Greece for days set out on a determined march across the country in an attempt to cross the sealed Macedonian border on Monday.The group of refugees and migrants, which included a large number of children, crossed over a river as they made their way from Idomeni to the village of Hamila and then crossed into Macedonia.Photos show parents carrying children on their backs and their belongings overhead as they forged through water that reached to their thighs.Macedonian authorities responded by arresting hundreds of people who crossed the border.
