Rebecca Bassett scored a hat-trick for Northern Ireland, with Chloe Orr also getting on the score sheet.
Northern Ireland play their final game of the UEFA U17 Development Tournament on Friday, 8 May against the Faroe Islands at Penybont FC (11.00am kick off).
In today’s other match, Wales secured a penalty shoot-out win over the Faroe Islands, following a 2-2 draw after 80 minutes.