President Trump on Sunday announced that Abu Bakr al-Baghdadi, the elusive Islamic State leader, died during a U.S. military operation in Syria, a major breakthrough more than five years after the militant launched a self-proclaimed caliphate that inspired violence worldwide.

“Last night the United States brought the world’s Number One terrorist leader to justice,” Trump said in a televised announcement from the White House. “He was a sick and depraved man, and now he’s gone.”