NEW : Four soldiers , more than 150 children among the dead , a doctor says . Attack comes 54 after three deadly attacks in Lahore , Quetta and Peshawar . Lahore attack targeted crowded market , killing Four and wounding more than 150 .
NEW : Four soldiers , four children among the dead , a doctor says . Attack comes a day after three deadly attacks in Lahore , Peshawar and Quetta . Lahore attack targeted crowded market , killing 54 and wounding more than 150 .