At least seven security personnel were injured Monday as an explosion took place near a mosque in Bara, a main town in Khyber tribal agency, a private TV reported. According to the reports, a brief shootout was also heard near the mosque after the minor blast occurred. The security forces have cordoned off the area and started a search operation. Since July, the security situation in Pakistan has rather improved despite of some sporadic incidents, at a time when the government and the army are going all out for the relief and rescue efforts for millions of flooded Pakistanis.