REPUBLIKA.CO.ID, BAGHDAD - Islamic State militants have killed at least 500 members of Iraq's Yazidi minority, burying some alive and taking hundreds of women as slaves, an Iraqi government minister told Reuters on Sunday.

Human rights minister Mohammed Shia al-Sudani accused the Sunni Muslim insurgents of celebrating a "a vicious atrocity" with cheers and weapons waved in the air. No independent confirmation was available. Islamic State's advance through northern Iraq has forced tens of thousands to flee, threatened the capital of the Kurdish autonomous region and provoked the first US air strikes in the area since Washington withdrew troops from Iraq in late 2011.

Sudani said in a telephone interview that news of the killings had come from people who had escaped town of Sinjar, an ancient home of the Yazidis, a Kurdish-speaking community whose religion has set them apart from Muslims and other faiths.

"We have striking evidence obtained from Yazidis fleeing Sinjar and some who escaped death, and also crime scene images that show indisputably that the gangs of the Islamic State have executed at least 500 Yazidis after seizing Sinjar," he said

"Some of the victims, including women and children were buried alive in scattered mass graves in and around Sinjar."

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