Regional and Western officials say campaign will be led by Yemeni ground forces overseen by Riyadh, which will provide air support; Pakistan yet to decide whether to send troops

Reports say Oman Air removed copilot from a training course and moved him to another role, with ABC reporting he suggested to investigators that he wanted to crash the plane in Israel

Crude oil tanker hit by unknown projectile off Oman, according to UK maritime agency, which says all crew members safe