following clashes between the ethnic Tatar and Russian protesters. The interim authorities of Ukraine put security forces on alert. The Autonomous Republic of Crimea has announced that it plans to hold a referendum for independence the same day as the elections in Ukraine. 28 February 2014 Crimean crisis: Members of the Russian Parliament propose new laws that would make it easier for Russia to incorporate parts of Ukraine. Russia finally confirms that it has moved troops in Ukraine's Crimea region to protect its own interests. Acting General Prosecutor General Oleh Makhnitskyi formally calls on Russia to extradite ousted President Viktor Yanukovych along with 10 other figures; the list includes former Prosecutor General Viktor Pshonka, former Interior Minister Vitaliy Zakharchenko, Yanukovich aide Andriy Klyuyev, and former Justice Minister Olena Lukash. Interim President of Ukraine Oleksandr Turchynov says the Russian military is "directly involved" in the crisis in Crimea, while Interior Minister Arsen Avakov describes the events as "a military invasion and occupation". News agency Interfax-Ukraine reports that armed pro-Russian men have taken over control of two airports, among which Simferopol International Airport, and raised the Russian Navy flag. Russian businessman and oppositionist Gleb Fetisov, a co-chair of the Alliance of Greens and Social Democrats, detained in Moscow. The leader of the People's Alliance opposition party Alexei Navalny placed under house arrest. March 1 March 2014 Crimean crisis: Russian President Vladimir Putin formally asks the Federation Council of the Russian Parliament for approval to use armed forces in Ukraine. He receives unanimous support. The council also demands for President Putin to recall the Russian Federation ambassador to the United States. US President Barack Obama warns Russia, saying that any violation of Ukraine's sovereignty and territorial integrity would be "deeply destabilizing," and that "the United States will stand with the international community in affirming that there will be costs for any military intervention in Ukraine." De facto Prime Minister of Crimea Sergey Aksyonov claims control of all military, police and other forces in Crimea and asks the President of Russia Vladimir Putin for assistance. Russian Federation ambassador to the United Kingdom is summoned by the British Secretary of State William Hague. The U.N. Security Council is to be summoned for the second time in just two days. 2 March 2014 Crimean crisis: Ukraine's Navy commander-in-chief, Denis Berezovsky who was appointed only 1 March, defects to the Russia-backed Crimea government. Ukraine's acting president Oleksandr