Saudi Arabia, Syria and the United States were responsible for the majority of state-led explosive attacks in 2015, according to a new study published by the advocacy group Action on Armed Violence (AOAV).
The Saudi-led coalition in Yemen, followed by the Syrian government and U.S.-led coalition in Syria, accounted for the majority of government sanctioned bombings in 2015 - in which more than 16,000 people were killed or injured, said the study, released on Tuesday.
It added that 64 percent of those killed or injured were civilians.
Taking into account the raging Syrian civil war - now in its sixth year - Syrians accounted for the largest group of civilians killed or injured last year by bombings.
Operation Inherent Resolve, the name for the U.S.-led coalition, has been combating the so-called Islamic State in Syria and Iraq in an air campaign since August 2014. It is made up of partner countries that include the U.K., France and Australia. As of April 12, it has conducted over 11,500 strikes in Iraq and Syria, according to the U.S. Department of Defense.