30 people have been wounded in an explosion in the Gaza Strip, in the house of a Hamas commander last night. Palestinian sources said, the injured people were near the Hamas commander Alaa al-Danaf’s house when incident occurred. It was unclear if the commander was killed in the blast. The condition of one of the injured is critical.The explosion badly damaged 12 nearby houses and rescue teams were digging through the rubble for survivors. The Israeli Defence Forces spokesperson has denied any involvement while Hamas blamed Israel for the explosion.