In Zimbabwe, longtime leader Robert Mugabe reportedly resigned Tuesday, prompting massive celebrations in the streets of the capital, Harare, and other cities. Mugabe had ruled for the last 37 years, since Zimbabwe’s independence, until he was placed under house arrest last week in an apparent military coup. In Parliament, cheers erupted Tuesday after the speaker of the National Assembly read from a resignation letter said to be written by Mugabe. Zimbabwe’s military says it has installed Mugabe’s former vice president and longtime political ally, Emmerson Mnangagwa, as interim president.