The Kremlin on Friday called the US missile strike on the Syrian airfield from which a chemical weapons strike was launched an “aggression against a sovereign state in violation of international law.”

“Washington’s move deals a significant blow to the Russia-U.S. relations, which are already in a deplorable shape,” and poses a “serious obstacle” for creating an international coalition against terrorism, said Dmitry Peskov, a spokesman for Russian strongman Vladimir Putin.

Russia’s Foreign Ministry said it was suspending an agreement with Washington — signed after Russia began an air campaign in support of Assad in September 2015 — under which the two countries exchange information about sorties over Syria.

The Kremlin said just 23 of 59 cruise missiles reached the air base, destroying six Syrian jets but leaving the runway intact.

A US official said all but one of the 59 missiles struck their intended targets, hitting multiple aircraft and hardened air shelters, and destroying the fuel area.

A US-led coalition has been bombing ISIS targets in Syria since 2014, while Russia’s air force has been striking both extremist groups and Syrian rebels in order to aid Assad’s forces — killing an untold number of civilians living in rebel-held towns.

Maj. Gen. Igor Konashenkov, a defense ministry spokesman, said that measures were underway to strengthen Syrian air defenses to “protect the most sensitive Syrian infrastructure facilities.”

He said the Tomahawk missiles destroyed six Syrian MiG-23 fighter jets that had been under repairs, but didn’t damage other Syrian warplanes at the base. He claimed that the base’s runway was undamaged.

Putin’s purported outrage over the strikes comes just over three years after Russian forces backed by pro-Russian rebels invaded and annexed Crimea from Ukraine, a former Soviet satellite.

Putin has also taken fire from world leaders for what they call an indiscriminate bombing campaign in Syria that targets heavily populated civilian areas.

Syrian officials said at least nine civilians were killed, including four children.

The spokesman also said that Russia’s own military facilities in Syria were already protected by sophisticated air defense systems Western leaders backed the US action, saying Syrian President Bashar al-Assad had brought it on himself by using banned sarin nerve gas in an attack earlier this week.

With Post Wires