Libyan politics is again in danger of splitting into two rival administrations, after the Tobruk-based House of Representatives on Thursday appointed a new prime minister in a challenge to the UN-backed government in Tripoli, the Financial Times reports. Former interior minister Fathi Bashagha’s appointment throws the UN-backed process to unite the country into further uncertainty, following the blow dealt by the failure to hold elections that were scheduled for December. Interim Prime Minister Abdul Hamid Dbeibeh rejected the appointment of his rival and refused to step down until elections are held.