Amnesty International has urged Yemen’s Houthi rebels to free four journalists facing the death penalty for “espionage” in the war-torn country, ahead of an appeal court hearing on Sunday. The four, Abdul Khaleq Amran, Tawfiq al-Mansouri, Harith Hamid and Akram al-Walidi were arrested in June 2015 in Yemen’s rebel-held capital Sanaa. “Yemen’s Houthi de facto authorities must quash the death sentences and order the immediate release of four Yemeni journalists who are facing execution following a grossly unfair trial,” the rights group said in a statement on Friday. The Iran-backed Houthis seize…