KARACHI, Sept 19: Police on Wednesday released the sketch of a man believed to be involved in Tuesday’s twin blasts near the Bohra compound in North Nazimabad.

Seven people, including an infant and a minor girl, were killed and 22 others wounded in the terror attack.

The police said that the motorcycle rigged with explosives used in one of the blasts was snatched on Sept 3 in Rizvia Society.

With the help of the owner of the motorcycle, the police prepared the sketch of the bike snatcher who they believed was also involved in the Tuesday terror attack.

Meanwhile, the police registered a case (FIR 448/2012) under Sections 302 (premeditated murder), 324 (attempted murder), 34 (common intention) of the Pakistan Penal Code, Section 7 of the Anti-Terrorism Act, 1997 and Section 3/ 4 of the Explosives Act against unidentified assailants on behalf of the state at the North Nazimabad police station.

Investigators estimated that over 3.5 kilograms of explosives laced with ball bearings were hidden in the motorcycle while 500 gramsof explosive was hidden near a tree.