be rehabilitated. $8 billion were allocated to get the program started. On 6 December 2011, Libya's interim government announced that, following consultations with Tripoli's local council, it had given militias lingering in the capital until late December to hand over security to the authorities. Officials said residents of Tripoli would convene rallies in support of the initiative to clear the city of weapons and out-of-town fighters. If militias had not withdrawn by 20 December 2011, the authorities and members of the public intended to close the whole city to traffic. By January 2012, the former rebels had dismantled most of their checkpoints, while some key bases still remained. In March 2012, the Secretary-General on the United Nations Support Mission in Libya reported that: On 11 September 2012, 4 Americans, including visiting United States Ambassador to Libya J. Christopher Stevens, were killed when the U.S. diplomatic mission in Benghazi came under attack. U.S. officials said heavily armed extremists had laid siege to the consulate using "military-style tactics". On 21 September, thousands of demonstrators, along with government police officers, stormed the bases of several Islamist militias in Benghazi, including Ansar al-Sharia, which has been linked to the attack on the U.S. consulate, and forced their members to flee. On 9 January 2013, the Libyan Ministry of the Interior reported that the number of murders has risen from 87 in 2010 to 525 in 2012 – a 503% increase – while thefts over the same period have risen from 143 to 783 – a 448% increase. In September 2013, armed groups were blockading oilfields. On 10 October 2013, the Prime Minister of Libya, Ali Zeidan, was briefly captured by an armed group. He was released hours later. On 23 August 2014, after 10 days of clashes, Tripoli International Airport fell from government control to fighters from Libyan Central Shield, a coalition of Islamist and Misrata forces. On 25 August 2014, four senior U.S. officials said that Egypt and the United Arab Emirates had "secretly launched airstrikes against Islamist-allied militias battling for control of Tripoli" twice in the preceding seven days without informing their military partner, the U.S. Extralegal imprisonments Hundreds of suspected Gaddafi supporters have been rounded up by revolutionary brigades, often on the basis of only rumour and accusation. According to a report by the Secretary-General of the United Nations, up to 7,000 people, including women and children, are being held in