Russian Defence Minister Sergey Shoigu stated that Su-57 aircraft were tested in Syria with new cutting edge cruise missiles.

“Operational test launches of advanced operational-tactical cruise missiles have been conducted from the fifth generation [fighter jet] Su-57 in February this year in order to evaluate under battle conditions the stated specifications of the developed military vehicles,” Shoigu said.

Earlier, President of the United Aircraft Corporation Yuri Slyusar announced that two Su-57 jets had undergone their combat debut in Syria in February 2018 and successfully completed all their assignments.