The UN envoy for Yemen on Sunday condemned suspected rebel shelling of a residential neighbourhood in the southwestern city of Taiz the previous day that killed at least one child and wounded 10. Taiz, Yemen’s third-largest city and the capital of the province by the same name, has been under blockade since 2016, imposed by the Houthi rebels, who are waging war against the country’s internationally recognised government, which is backed by a Saudi-led coalition. The Houthis have rejected two UN proposals to end their blockade. A truce between the waring sides that initially took effect in Apri…