KABUL: The Taliban government’s morality police detained about 20 aid workers near the Iran-Afghanistan border because their beards were not long enough, three sources from aid organisations said on Monday. The Taliban authorities in Kabul rule according to a strict interpretation of Islamic law and have said men must grow beards longer than a fist. The staff detained were working on Saturday near the Islam Qala border crossing for organisations that cooperate with the United Nations, according to internal statements shared by two aid workers on condition of anonymity.