United States recognizes the independence of Slovenia, Croatia, and Bosnia and Herzegovina. The European Communities also recognizes Bosnia and Herzegovina. April 9 A Miami jury convicts former Panamanian ruler Manuel Noriega of assisting Colombia's cocaine cartel. In the United Kingdom general election the Conservative Party led by Prime Minister of the United Kingdom John Major narrowly retains power. April 10 First Nagorno-Karabakh War: Maraga massacre – At least 43 Armenian civilians are killed as their village of Maraga, Azerbaijan, is captured and destroyed by the Azerbaijani Armed Forces. A Provisional Irish Republican Army bomb explodes at the Baltic Exchange in the City of London; three are killed, 91 injured. April 13 – The 5.3 Roermond earthquake affects the Netherlands, Germany and Belgium with a maximum Mercalli intensity of VII (Very strong). April 15 – The National Assembly of Vietnam adopts the 1992 Constitution of the Socialist Republic of Vietnam. April 16 – President of Afghanistan Mohammad Najibullah is ousted and detained by Muslim rebels moving towards Kabul, setting the stage for the civil war in Afghanistan (1992–96). April 20 – The Freddie Mercury Tribute Concert, held at Wembley Stadium, London, is televised live to over one billion people and raises millions of dollars for AIDS research. April 21 – The death of Grand Duke Vladimir Kirillovich of Russia results in a succession dispute between Nicholas Romanov, Prince of Russia and Vladimir's daughter Maria for the leadership of the Imperial Family of Russia. April 22 – Fuel leaking into a sewer causes a series of explosions in Guadalajara, Mexico; 215 are killed, 1,500 injured. April 27 – Betty Boothroyd becomes the first woman elected Speaker of the House of Commons of the United Kingdom. April 28 – The two remaining constituent republics of the former Socialist Federal Republic of Yugoslavia – Serbia and Montenegro – form a new state, named the Federal Republic of Yugoslavia (which in 2003 becomes Serbia and Montenegro), bringing to an end the official state union of Serbs, Croats, Slovenes, Montenegrins, Bosnian Muslims and Macedonians that has existed since 1918 (with the exception of an occupation period during World War II). April 29 Los Angeles riots: The acquittal of four police officers in the Rodney King beating criminal trial triggers massive rioting in Los Angeles. The riots will last for six days resulting in 63 deaths and over $1 billion in damages before order is restored by