AlQa'dah 16, 1434, Sep 22, 2013, SPA -- A suicide bomb attack in northwestern Pakistan killed at least 56 people Sunday, officials said, according to AP. The bombing in Peshawar also wounded another 120 people. It occurred in the city's Kohati Gate district . It was not immediately clear whether one or two suicide bombers carried out the attack. Witnesses said they heard two blasts, the second more powerful than the first. One police officer, Zahir Shah, said he believed both blasts were caused by suicide bombers.