The explosion in Quetta ripped through a vehicle used by security forces, killing at least 12 people -- 11 security personnel and a civilian.
Blast Targets Pakistani Security Personnel
![A police officer comforts a man whose son was killed in a bomb blast in Quetta, Pakistan, May 23, 2013.](https://gdb.voanews.com/BA31E384-44CC-447F-913E-965473531429_w1024_q10_s.jpg)
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A police officer comforts a man whose son was killed in a bomb blast in Quetta, Pakistan, May 23, 2013.