[Children sit on window sill at a makeshift camp for refugees and migrants at the Greek-Macedonian border near the village of Idomeni]Migrant children making the perilous journey to Europe to escape war and poverty face possible beatings, rape and forced labour in addition to risk of drowning in the Mediterranean, the United Nations Children's Fund (UNICEF) said on Tuesday. Minors account for a growing percentage of migrants and refugees, particularly those trying to reach Italy by sea from Libya, it said in a report, "Danger Every Step of the Way". Of the roughly 206,200 people who arrived in Europe by sea this year to June 4, one in three was a child, it said, citing figures from the U.N. refugee agency.