ISLAMABAD: Prime Minister Muhammad Shahbaz Sharif has expressed great concern over the attempt to attack and kidnap the son of head of Jamiat Ulema-e-Islam-Fazal (JUI-F) Maulana Fazal ur Rehman. Shahbaz Sharif met Maulana Fazal ur Rehman at his residence where the Prime Minister expressed great concern over his attack on his younger son Asjad Mahmood and trying to kidnap him.