NEW : Raid on children 's aid organization in Pakistan 's tribal region kills 8 . Suicide bomber struck the North West Frontier Province 's military HQ , killing three people . the Pakistani Taliban 's top medical officer among those killed in blast in Rawalpindi . Closely guarded city is home to the country 's military headquarters .
NEW : Raid on children 's aid organization in Pakistan 's tribal region kills three . Suicide bomber struck Pakistan 's military HQ , killing 8 people . Army 's top medical officer among those killed in blast in Rawalpindi . Closely guarded city is home to the country 's military headquarters .