US Issues Alert To Citizens After Al-Qaeda Chief's Death

After Al-Qaeda's Chief Ayman al-Zawahiri's death in a US strike, the United States issued a worldwide alert asking its citizens to maintain a high level of vigilance when travelling abroad. As per issued notice, al-Qaeda supporters may target American facilities, personnel or nationals in the wake of killing of the terror network's emir Ayman al-Zawahiri. Furthermore, Zawahiri, who played a key role in the 9/11 attacks.