An explosion last weekend at an Iraqi military base hosting former pro-Iran paramilitaries was caused by munitions stored on-site, an investigative committee said Tuesday, ruling out an air strike. The overnight Friday to Saturday blast at the Kalsu base in Babylon province killed one person and wounded eight others. Officials had initially blamed an “aerial bombing”, but the authorities have now dismissed the possibility of a drone or air strike. The base housed “barracks and arms depots” belonging to the Iraqi army, the interior ministry and the Popular Mobilisation Forces (PMF), or Hashd al…