Unknown attackers attempted on Sunday to blow up an Egyptian gas pipeline to Israel and Jordan, but the explosives failed to detonate, a security official said.

Six armed men stormed the gas terminal in the northern Sinai town of Al-Sabeel at dawn on Sunday and placed explosive devices there, the official said.

"They failed to detonate the bombs and fled the scene. Even the security guard was missing when police arrived," he said, adding police officers managed to remove the explosives.

Last month attackers used explosives against the pipeline, cutting off gas supply to Jordan and Israel for more than a month.