April 2016 Idlib bombings
The April 2016 Idlib bombings are two separate aerial bombardments on marketplaces in the rebel-held towns of Maarrat al-Nu'man and Kafr Nabl in the Idlib Governorate of Syria. The bombings killed more than 40 civilians and was described as a massacre by the Syrian Observatory for Human Rights.
Source: Wikipedia — April 2016 Idlib bombings (CC BY-SA 4.0)