epa06454302 A Yemeni walks through a market in the old city of Sana'a, Yemen, 19 January 2018. According to UN statistics, a total of 22 million people of Yemen’s 26-million population are in need of humanitarian assistance after two and a half years of escalating conflict between Yemen's Saudi-backed government forces and the Houthi rebels.  EPA/YAHYA ARHAB
A Yemeni walks through a market in the old city of Sana'a on 19 January 2018. Yahya Arhab / EPA

Yemeni activists launch a campaign to save a woman from execution by the Houthis