1. Attack

    Bus Bomb Explodes in Karachi

    Pakistani firefighters extinguish a destroyed burning passenger bus after an explosion in Karachi on December 29, 2012. At least four people were killed and dozen wounded when a loud explosion ripped apart a passenger bus outside the railway station in the port city of Karachi, the nature of the explosion could not be ascertained. AFP PHOTO/ Asif HASSAN        (Photo credit should read ASIF HASSAN/AFP/Getty Images)

    Asif Hassan/AFP/Getty

    A bomb exploded on a bus in Karachi, Pakistan, on Saturday, killing six and wounding 48, eight of whom were reportedly in critical condition. Officials disagree on the location of the bomb, with some saying it was planted on the bus and others claiming it was on a motorcycle and went off as the bus passed by. Pakistan's biggest city and its commercial capital, Karachi has been plagued by violence from attacks by militants and ethnic tensions over the last 10 years.

    Read it at Reuters