Iranian and Turkish demonstrators hold pictures of Shiite cleric Sheikh Nimr al-Nimr as they protest outside the Saudi Embassy in Ankara, on January 3, 2016, to protest against the execution by Saudi Arabia of a prominent Shiite cleric which they saw as a deliberate sectarian aggression.
Nimr and other Shiite activists were among a total of 47 people executed, most of them described by the interior ministry as involved in killings by Al-Qaeda.
 / AFP / ADEM ALTAN        (Photo credit should read ADEM ALTAN/AFP/Getty Images)