Fifty-three people were killed and 200 were injured in an attack on Monday by the Iran-aligned Houthis on a government security forces training camp in Yemen’s Shabwa province, according to the local authority, as fighting in the impoverished country intensifies. Video verified by Reuters from Shabwa province showed injured people and bloodied bodies scattered across the ground. The Houthis and the internationally recognised government, which is backed by a Saudi-led coalition, have been...