A pipeline carrying natural gas from Egypt to Israel exploded today following an attack by an armed gang. Egyptian security officials said, it was the second attack on the pipeline near the north Sinai town of El Arish in recent months. Authorities closed the valves controlling the flow of gas in an effort to stem the fire. On Feb. 5, an explosion at a different section of the pipeline severed gas exports for weeks. Egypt exports gas to Israel and Jordan. However, lately the deals have come under attack because of the low price at which the gas is sold.