The blast occurred near an election office of the Muttahida Qaumi Movement located on Burnes Road.
DSP Zameer Abbasi, talking to The Express Tribune, said that two of the detainees were among those who had received minor injuries from the blast, while a third had been arrested with the help of geo-fencing technology.
He added that the blast did not bear resemblance to the ongoing series of blasts on political parties.
Investigators are also trying to ascertain if the Taliban were really behind the act.
Published in The Express Tribune, May 4th, 2013.
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