Yemen's Houthis have been targeting vessels in the southern Red Sea and the Bab al-Mandab Strait in attacks that the Iran-aligned group says aim to support the Palestinians as Israel and Hamas wage war.Several freight firms including MSC, the world's largest container shipping line, said they would avoid the Suez Canal as a result, which could mean having to circumnavigate Africa instead.War risk insurance premiums have risen as a result.WHAT ARE THE RECENT HOUTHI ATTACKS?* Dec.