A Yemeni girl holds a picture of her brother allegedly killed in Yemen's ongoing conflict, during a rally against Saudi-led airstrikes, in Sana'a, Yemen, 23 August 2017. According to reports, at least 54 people were killed and dozens of others wounded in the Yemeni capital on 23 August 2017 when the Saudi-led international coalition carried out airstrikes on Houthi rebels in Sana'a. (Photo by Yahya Arhab/EPA/EFE)
