But three judges from England's Court of Appeal unanimously agreed Begum could have a fair and effective appeal of that decision only if she were permitted to come back to Britain.
The blast targeted a security point at the entrance to Taraghin, 780 km (590 miles) south of Tripoli, but did not cause any casualties, a resident said.
According to the British intelligence agencies, he was appointed leader hours after al-Baghdadi's assassination during a special operation held by US special forces.
An affiliate of the Islamic State terrorist group claimed responsibility for the Nangarhar bombing, according to the SITE Intelligence Group. No one has claimed the hospital attack.
Experts caution that Islamic State terror cells could be moving from east to west, potentially getting closer to Suez Canal, mainland Egypt
The ongoing violence underscored the challenges to securing lasting peace in Afghanistan even after the United States signed a troop withdrawal agreement with the militant Taliban in February.
The statement came three days after the military said 10 personnel were killed or wounded in an attack near Bir al-Abd in North Sinai. Islamic State claimed the attack.
The attack occurred on Thursday south of Bir al-Abd city in the Northern Sinai region.
British media said former rapper Abdel Majed Abdel Bary used to have joint British-Egyptian national, but was stripped of UK citizenship after joining IS.
Terrorist cell sought to murder critic of Islam and carry out killing in Albania.