A Yemeni woman (R) buys firewood for cooking as propane gas became unobtainable at a market in Sana'a, Yemen, 15 April 2018 (issued 16 April 2018). Yemen has been experiencing severe shortages of fuel and cooking gas supplies due to three-year conflict in the impoverished country. (Photo by Yahya Arhab/EPA/EFE)
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