Yemen appeals for help for civilians as Houthis tighten the siege of Taiz, and other Mideast news

Yemeni officials have appealed for international support to protect civilians in Taiz as Iran-backed Houthi rebels tightened their siege of the city. Meanwhile, a police officer guarding the Israeli Embassy in the Serbian capital of Belgrade shot and killed a man who attacked him with a knife . Police said the incident was a “terrorist attack.” Separately, Iran’s top diplomat said a meeting of…