The April Revolution, also known as the April 19 Revolution or April 19 Movement, was a series of mass protests that occurred in South Korea against President Syngman Rhee and the First Republic. These protests began on April 11th in the city of Masan and were sparked by the death of a local high school student at the hands of police during earlier demonstrations against fraudulent elections. The protests were driven by widespread dissatisfaction with Rhee's authoritarian leadership style, corruption, use of violence against political opponents, and uneven development of the country. The protests in Masan quickly spread to the capital city of Seoul, where they were met with violent suppression. As a result of the two weeks of protests, 186 people were killed. On April 26th, Rhee resigned and fled to the United States. He was replaced by Yun Posun, marking the beginning of the Second Republic of South Korea.