An explosion shook a gas terminal inEgypt's northern Sinai Peninsula on Saturday -- setting off a massive blaze that was contained by shutting off the flow of gas to neighboring Jordan and Israel. Egypt's natural gas company said the fire was caused by a gas leak -- but a local security official said an explosive device was detonated inside the terminal. The regional governor said he suspected sabotage. The blast and fire at the gas terminal in the Sinai town of El-Arish did not cause casualties. Israel's Minister of Infrastructure Uzi Landau said in a statement Saturday that Israel is prepared for unexpected disruptions in the supply of natural gas from Egypt, and that a drill was held last June when an exact scenario was simulated. "No disruption of the electricity supply is expected," Landau said, adding that Israel has the capacity to immediately switch to alternative energy sources.