The District Police Officer (DPO) Bannu Iqbal Marvat has succumbed to injuries here at Central Military Hospital (CMH) in Rawalpindi, police sources said Saturday, a private TV reported. It may be mentioned, DPO Iqbal Marvat was critically injured in a suicide blast occurred in Bannu on Thursday and was being treated at Intensive Care Unit (ICU) of CMH in Rawalpindi. The blasts also left 15 men killed including some police officials, media reported.