The northern Sinai desert was ablaze early Thursday morning...<br/> The cause, an explosion in a natural gas pipeline that carries fuel between Egypt, Israel and Jordan.<br/> Sources say improvised explosive devices were put under the pipeline and were detonated from a distance.<br/> A message in the sand, apparently left by the assailants read: "We will not allow gas exports to Israel".<br/> The pipeline has been a target for attacks by anonymous saboteurs since the overthrow of President Hosni Mubarak in February.<br/> Egypt and Israel have signed a 20-year natural gas deal that is largely unpopular with the Egyptian public.<br/> This is the sixth pipeline explosion incident since Mubarak was overthrown.<br/> Julie Noce, Reuters
