The U.S.-led coalition in Syria on Sunday targeted and killed an Islamic State (ISIS) leader responsible for the 2014 beheading of an American aid worker, a U.S. official confirmed to CBS News on Monday. Abu al-Umarayn and several ISIS members were killed in precision drone strikes in a desert area in southeast Syria, according to U.S. Central Command.

Taliban extremists claimed responsibility for an attack in Afghanistan’s capital Wednesday that killed at least six people at a British security firm. The incident in Kabul injured at least 32 others. A suicide bomber rammed an explosives-packed truck into the gate of the G4S security compound, and several other armed militants then stormed inside. G4S, one of several foreign security contractors in the country, provides guards for the area around the British Embassy in Kabul.

A roadside bomb in eastern Afghanistan killed three U.S. soldiers on Tuesday, the U.S. military said. Three other service members and one American contractor were also injured when the improvised explosive device detonated near the provincial capital of Ghazni. The injured were evacuated and are receiving medical care, according to U.S. military spokesman Lt. Ubon Mendie. The Taliban claimed responsibility for the attack and said it destroyed a U.S. tank.

Suicide bombers in Somalia killed a prominent Islamic leader and at least 17 of his followers on Monday for having music in their religious ceremonies, according to police. Two suicide bombers set off explosives in front of Sheikh Abdiweli Ali Elmi’s home, which also served as a Sufi shrine, said Ahmed Awale, a police official in the northern city of Galkayo. Four gunmen then stormed the building and opened fire. Awale said officials who responded to the incident killed three attackers and captured one alive.

A suicide bombing at a mosque on an Afghan army base Friday killed at least 27 people and injured about 57. Worshippers had gathered for Friday prayers when the explosion ripped through the building in the country’s eastern Khost province. Sakhi Sardar, who heads a hospital in the region, said many of the injured sustained shrapnel wounds. Just as in an attack Tuesday on an Islamic gathering in Kabul, no group has claimed responsibility for this latest bombing.

Armed separatists on Friday morning staged an hourlong shootout at the Chinese Consulate in the port city of Karachi, Pakistan, killing two police officers and two civilians. Witnesses reported hearing multiple blasts and gunshots before responding police officers killed all three assailants. Amir Shaikh, the Karachi police chief, said officers shot the attackers before they could enter the consulate building. Police identified the two civilian casualties as a father and son who were at the consulate to obtain visas.

The Taliban denied responsibility for Tuesday’s suicide bombing in Kabul, Afghanistan, that targeted Islamic scholars and clerics. The attack struck a wedding hall where hundreds gathered to mark the birthday of Muhammad, the founder of Islam. Public Health Ministry spokesman Wahid Majroh said Wednesday the death toll from the attack had risen to 55 people with at least 94 others sustaining injuries. Taliban spokesman Zabihullah Mujahid said the group condemned any attack on civilians or religious clerics. Islamic State (ISIS) also remains active in the country.