Russian SU-30SM crashed into the Mediterranean Sea off of Syrian coast.

Russian SU-30SM crashed into the Mediterranean Sea off of Syrian coast. Both pilots were killed. Russia has claimed that the cause was a bird strike and not enemy fire.

Source: https://www.youtube.com/watch?v=YshRNP4Yn3Q

More info : http://www.foxnews.com/world/2018/05/03/russia-2-dead-in-fighter-jet-crash-off-syrian-coast.html