Operatives from Iran and its Lebanese ally Hizballah are working inside Yemen to support Huthi insurgents' attacks on international shipping, the U.S. special envoy for Yemen told a Senate subcommittee on February 27. Iran is "equipping and facilitating" the Huthi attacks, said Tim Lenderking. "Credible public reports suggest a significant number of Iranian and Lebanese Hizballah operatives are supporting Huthi attacks from inside Yemen," Lenderking said. "I can't imagine the Yemeni people want these Iranians in their country. This must stop," he added. The attacks on shipping have triggered retaliatory U.S. and British strikes on Yemen.