WASHINGTON (AP) — President Donald Trump says U.S. and Nigerian forces carried out a mission to kill a leader of the Islamic State group. Trump made the announcement of the joint operation to take out Abu-Bilal al-Mainuki in a late-night social media post Friday that offered few details. The president said al-Mainuki was second-in-command of the Islamic State group globally. Al-Mainuki was viewed as the key figure in the group’s organizing and finance, and had been plotting attacks against the United States and its interests, according to a U.S. official.