Pakistan, July 15 -- Hamas fighters launched a deadly attack in northern Gaza, destroying Israel's Mark 4 battle tank - considered the world's most secure. The explosion occurred in Jabalia, near the Gaza border. Three Israeli soldiers died on the spot, and one officer was badly injured. All belonged to the 52nd Battalion of Israel's 401st Armored Brigade. The attack marked a major blow to Israel's military.

At first, the Israeli army believed the tank was hit by a Hamas rocket-propelled grenade. Later, investigators suspected the blast may have been caused by a shell exploding inside the tank. However, the exact reason is still unknown. Military experts are reviewing all possible causes. The army called it a serious operational incident...