Updated

Myanmar authorities have taken foreign diplomats and representatives of the United Nations on a tour of conflict-torn northern Rakhine state, where a security crackdown has led to an exodus of more than 500,000 Rohingya Muslims.

Maungdaw district administrator Ye Htut says three groups of diplomats were taken to three different areas of the region on Monday. He did not provide details on what countries the diplomats were from.

Myanmar has come under international criticism for barring aid groups, journalists and other outsiders from independently traveling to the region to see the situation there. A previous guided visit for diplomats scheduled for last week was abruptly canceled.

More than half a million Rohingya refugees have fled to Bangladesh in recent weeks, the largest refugee crisis to hit Asia in decades.