A possible town massacre by the Islamic State is imminent in the town of Amerli, the United Nations envoy for Iraq Nickolay Mladenov said.
The Amerli town had been under the control of the Islamic State for two months now and the people are living without food and water, Mladenov said in a press statement.
"The situation of the people in Amerli is desperate and demands immediate action to prevent the possible massacre of its citizens."
He is calling for the Iraqi government and the international community to do their best to rescue the people from their hapless condition.
"I urge the Iraqi Government to do all it can to relieve the siege and to ensure that the residents receive lifesaving humanitarian assistance or are evacuated in a dignified manner," he added.
Mladenov assured that the United Nations in Iraq is doing all it can to support Iraq's government in saving the Amerli's inhabitants from their "unspeakable suffering".
Meanwhile, Australian relatives of Iraqi Christians and Yazidis are calling for the Australian government to issue more humanitarian visas.
Early in August, the Federal Government has opened its humanitarian refugee program to fleeing Christians and Yazidis from Iraq.
The Australian government had allotted 13,750 places for its humanitarian refugee programme.
However, only 4,000 visas are allotted for refugees who mostly need resettlement.
On Sunday, Australian relatives and groups representing the refuges said that 4,000 places are not enough.
Relatives of Iraqi Christians are flocking the community resource centre in Fairfield. They are waiting for volunteers to help them in processing their immigration applications.
Everyone has a depressing story about their loved one trapped in Iraq and whom they wished could evacuate in Australia.
Among them is Admoun Anwiya who has a brother who worked as a doctor in Iraq. Anwiya said that the militants attacked his brother while he was in a surgery. They shoot his brother in the head, just because he is a Christian. His brother now lay wounded in a hospital.
Currently, there are 125,000 refugees with the United Nations.
"I know that Australia cannot take the 125,000 refugees that are currently registered with United Nations. But we still need assistance. Four thousand - we need more than that," Carmen Lazar of the Assyrian Resource Centre said.