Maduro has been described as a "dictator", and an Organization of American States (OAS) report determined that crimes against humanity have been committed during his presidency. According to estimations by the United Nations (UN), under Maduro's administration, more than 9,000 people have been subject to extrajudicial killings and more than four million Venezuelans have been forced to flee the country. China, Cuba, Russia, Iran, and Turkey support Maduro and denounce what they call interference in Venezuela's domestic affairs. "AP News" stated that "familiar geopolitical sides" had formed in the Venezuelan presidential crisis, with Russia, China, Iran, Syria, and Cuba supporting Maduro, and the US, Canada, and most of Latin America and Western Europe supporting Guaidó as interim president. Amid widespread condemnation, President Maduro was sworn in on 10 January 2019, and the president of the National Assembly, Guaidó, declared himself interim president on 23 January 2019. Maduro's government states that the crisis is a ""coup d'état" led by the United States to topple him and control the country's oil reserves." Guaidó denies the coup allegations, saying peaceful volunteers back his movement. Following a failed military uprising on 30 April 2019, representatives of Guaidó and Maduro began mediation, with the assistance of the Norwegian Centre for Conflict Resolution. On 26 March 2020, the U.S. Department of Justice indicted Maduro on charges of drug trafficking and narco-terrorism, and the Department of State offered a $15 million reward for information that help "bring him to justice".