Yemeni government and opposition groups, the government led by Saleh's former vice president, Abd Rabbuh Mansur Hadi, struggled to unite the fractious political landscape of the country and fend off threats both from Al Qaeda in the Arabian Peninsula and Houthi militants that had been waging a protracted insurgency in the north for years. In 2014, Houthi fighters swept into the capital of Sana'a and forced Hadi to negotiate a "unity government" with other political factions. The rebels continued to apply pressure on the weakened government until, after his presidential palace and private residence came under attack from the militant group, Hadi resigned along with his ministers in January 2015. The following month, the Houthis declared themselves in control of the government, dissolving Parliament and installing an interim Revolutionary Committee led by Mohammed Ali al-Houthi, a cousin of Houthi leader Abdul-Malik al-Houthi. However, Hadi escaped to Aden, where he declared he remains Yemen's legitimate president, proclaimed the country's temporary capital, and called on loyal government officials and members of the military to rally to him. 2011 revolution The 2011 Yemeni revolution followed other Arab Spring mass protests in early 2011. The uprising was initially against unemployment, economic conditions, and corruption, as well as against the government's proposals to modify the constitution of Yemen so that Saleh's son could inherit the presidency. In March 2011, police snipers opened fire on the pro-democracy camp in Sana'a, killing more than 50 people. In May, dozens were killed in clashes between troops and tribal fighters in Sana'a. By this point, Saleh began to lose international support. In October 2011, Yemeni human rights activist Tawakul Karman won the Nobel Peace Prize and the UN Security Council condemned the violence and called for a transfer of power. On 23 November 2011, Saleh flew to Riyadh, in neighbouring Saudi Arabia, to sign the Gulf Co-operation Council plan for political transition, which he had previously spurned. Upon signing the document, he agreed to legally transfer the office and powers of the presidency to his deputy, Vice President Abd Rabbuh Mansur Hadi. Hadi took office for a two-year term upon winning the uncontested presidential elections in February 2012, in which he was the only candidate standing. A unity government – including a prime minister from the opposition – was formed. Al-Hadi would oversee the drafting of a new constitution, followed by parliamentary and presidential elections in 2014. 2012 Saleh