A US officer, from the US-led coalition, stands with a fighters from the Kurdish People's Protection Units (YPG) at the site of Turkish airstrikes near northeastern Syrian Kurdish town of Derik, known as al-Malikiyah in Arabic, on April 25, 2017.
Turkish warplanes killed more than 20 Kurdish fighters in strikes in Syria and Iraq, where the Kurds are key players in the battle against the Islamic State group.
The bombardment near the city of Al-Malikiyah in northeastern Syria saw Turkish planes carry out "dozens of simultaneous air strikes" on YPG positions overnight, including a media centre, the Syrian Observatory for Human Rights said. / AFP PHOTO / DELIL SOULEIMAN        (Photo credit should read DELIL SOULEIMAN/AFP/Getty Images)