The Syrian Arab Army (SAA) made "an agreement with one of the rebel groups to surrender the town of Dumayr in the eastern Qalamoun", following which it launched the attack in a bid to force other rebels to lay down their weapons, Al-Masdar News reported. After some reports accused Israel of carrying out the strike, an IDF spokesperson reiterated the military's policy of not commenting on foreign reports.
The say the airstrikes last Saturday by the three nations were "limited, proportionate and necessary" and followed "only after exhausting every possible diplomatic option to uphold the global norm against the use of chemical weapons".
The move is likely a warning from Syria that it has the capacity to hit back at the West if it wants to.
The US ambassador to the OPCW, Ken Ward, had claimed Monday that the Russians had already visited the site and "may have tampered with it".
The French leader was also set to strip Syrian President Bashar Assad of a prestigious award he was granted by former president Jacques Chirac in 2001.
Syria's state news agency SANA also reported about the attack, adding that though the missiles' place of origin was not known, speculations were rife that Israel could have been behind the attacks after the USA denied carrying them out.
The last week has seen several reported strikes in Syria.
Tainted lettuce tied to nationwide E. Coli outbreak
Food and Drug administration to romaine lettuce from Yuma, Arizona, the primary supplier of lettuce this time of the year. The agency's most recent update indicated that 35 people had become infected - but no deaths had been reported.
It branded the incident an "aggression" but did not name a specific country.
Syria's Sana Ajel news claimed anti-aircraft units responded to an attack in Shayrat airbase near Homs.
The Pentagon's spokesman said that there was no United States military activity in the region at the time when Syria shot down enemy missiles.
After Saturday's strikes, which destroyed mostly empty buildings, the trio of Western powers trying to reassert influence on the seven-year-old war has appeared to favor diplomatic action.
Analysts have said however that it would take more for the West to mount a meaningful challenge to Russia's weight as a broker.
"There aren't any USA or even Coalition surgeries in that field [Homs]".