Law enforcement agencies on Saturday arrested 21 foreign students in seminaries in Islamabad and Rawalpindi for overstaying their visas and warned another 94 with valid visas to leave the country as soon as possible, sources told Daily Times on Saturday. They said the arrested students would soon be deported and no police case of overstaying was lodged against the students. The law enforcers and officials of the district administration visited 27 seminaries in the twin cities and checked visas and other travel documents of foreign students. Most of the arrested students are from Bangladesh, Kenya, Nigeria and Sri Lanka, sources said. The Interior Ministry directed intelligence agencies to compile a record of foreigners studying in the International Islamic University (IIU) and living in its hostels or in private accommodation, they said. The ministry also sought information about foreign IIU students who had completed their studies but were still in Pakistan without valid visas or travel documents, they added.