BENGHAZI - Libya's toothless interim government, led by prime minister Abdullah al-Thani, announced late Thursday it had tendered its resignation to the elected parliament, days after a rival Islamist administration was created.The interim government, operating in the east of the country to avoid the militias which have a strong presence in Tripoli, said it "presented its resignation to the elected parliament", which is based in Tobruk, 600 kilometres east of the capital, also for security reasons.The announcement came three days after Libya's General National Congress, officially replaced by the parliament elected in June, on Monday named pro-Islamist figure Omar al-Hassi to form a "salvation government".The Islamist-dominated GNC convened in Tripoli following an appeal by Islamists groups which contest the legitimacy of the parliament based in Tobruk.Meanwhile, migrants have been hit hard by the spiralling conflict in Libya which could lead to more of them taking to unseaworthy boats to try to reach Italy, the International Organization for Migration warned Friday."IOM is concerned that the number of migrants trying to reach Italy from Libya by sea could increase in the coming weeks, as more people decide to opt for the dangerous Mediterranean crossing to escape ongoing fighting in the Libyan capital," the IOM said in a statement. A week ago, 10 Sudanese were killed when a stray missile hit a house in a besieged district of Tripoli, where an estimated 15,000 Sudanese live. IOM staff has also identified some 2,000 Pakistanis who have found refuge in a school in central Tripoli.Migrants either working in Libya or using the country as a jumping off point as they seek to reach Europe illegally are particularly vulnerable to the country's raging instability. "Displaced migrants trapped in Tripoli have been particularly hard hit," the IOM said. "The place is overcrowded and everyone is anxious to be repatriated. But in the meantime, they urgently need food and medical care," said Othman Belbeisi, head of the IOM's Libya operations.The situation of migrants in detention centres is also deteriorating, the IOM said. Libya has 18 such centres for illegal migrants, holding a total of between 4,000 and 6,000 people.The organisation also said it was working with the Ethiopian embassy in neighbouring Egypt to obtain travel documents for a number of Ethiopian women who had been detained, and would help them get home. It said it had also received requests from Pakistan, the Philippines, Thailand and Vietnam to help their citizens leave Libya.