Four militants, including their commander, were been killed when explosives kept in a hideout suddenly blasted at Sheikhan area in Orakzai Agency, official sources said on Sunday. Four militants including their commander Abid Afridi were killed in the deadly explosion and four other outlaws sustained injuries. Arms and ammunitions concealed in the hideout was completely destroyed. Meanwhile in Mohmand Agency, security forces backed by gunship helicopters killed four pro-Taliban militants and injuring 10 others.