ISLAMABAD, Nov 11 (KUNA) -- At least 12 people have been confirmed dead while several others sustained injuries in a suicide blast near the main gate of district and sessions court in Pakistan's federal capital Islamabad on Tuesday, authorities reported According to initial police report, the suicide blast occurred near the main gate of the G 11 Islamabad courthouse when the attacker attempted to enter the courthouse. Security forces have cordoned off the area and a probe into the incident is underway, security has been beefed up in the surrounding area and across the capital. (end) sbk.sar