A still image taken from Russian Defense Ministry footage shows a missile strike against Syrian militants on Sept. 22, 2017.

MOSCOW, Sept. 22 (Xinhua) -- A Russian submarine fired Kalibr sea-based cruise missiles on Friday from underwater in the Mediterranean at facilities belonging to Nursra Front militants in Syria, the Russian Defense Ministry said.

The missiles launched 300 km away destroyed important control points, training bases and armored vehicles of the militants in northwestern Idlib province, the Russian Defense Ministry said in a statement.

The militants took part in an attempt to capture 29 Russian military policemen in the north of the neighboring province of Hama, according to the statement.

Syrian government troops supported by Russian air and naval forces are successfully advancing in various parts of the war-torn country, having liberated most of it from the militants.