text:  The group lost the last of its physical territory in 2019, but it has since shifted its focus to sub-Saharan Africa. Further east, its Afghan branch is thought to be responsible for deadly attacks this year in Iran and Russia, as well as elsewhere. That is BBC correspondent Frank Gardner. Turkish authorities say a propane tank explosion at a restaurant in the western city of Izmir has killed at least five people. More than 60 have been hurt.