The Iran-backed Lebanese group Hezbollah said on Sunday US actions in the Red Sea would harm the security of all shipping as the area had now become a conflict zone, saying the Houthis of Yemen would keep up attacks despite US and British strikes. Hezbollah leader Sayyed Hassan Nasrallah, whose group is a leading part of an Iran-aligned regional alliance which includes the Houthis, said Houthi targeting of ships belonging to Israel or heading to its ports would continue.