Photos show Houthi rallies, fighters and daily life inside Yemen.

Saudi Arabia says it shut down a major pipeline a day after it was attacked by drones, and Yemen’s Iranian-backed Houthi rebels captured a strategic island at the southern entrance to the Red Sea, two officials said, opening a new front in the Iran war. The Houthis made their biggest territorial gains in years along the Bab el-Mandeb Strait, one of the world’s key shipping lanes. The gains could boost Iran’s strategy of driving up world oil and gas prices to pressure the United States. Saudi Arabia said it had shut down the East-West pipeline as a precaution after the attack.