There was no immediate comment from Israel.
Accusing Israel of supporting the Islamic State terrorist group, the statement said the airstrike is an "attempt to raise ISIS's morale, which is collapsing after the crushing victory achieved by the Syrian army against terror".
He has also insisted his forces destroyed their entire chemical arsenal under a deal brokered by the USA and Russian Federation after a Sarin attack outside Damascus in 2013.
Yes, on a handful of occasions, the Syrian military has fired air defense weapons at Israeli jets, including in one case in which the IAF launched an Arrow interceptor in order to ensure the Syrian anti-aircraft missile didn't hit an Israeli community. Syrian opposition figures claimed that four Israeli warplanes were involved in the strike.
The missile attack was reportedly conducted on a military research facility, while the Syrian military did not specify the target of the Israeli strike.More news: Police Drag Nurse Outside As She Cries 'I Did Nothing Wrong!'
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Hezbollah is fighting Daesh in Iraq and Syria and rebels who want to overthrow Bashar al Assad's regime in Syria.
On Wednesday, the United Nations war crimes commission released a report confirming that the Assad regime had indeed used chemical weapons, including sarin gas, to attack its own people.
Syria's Scientific Studies and Research Center said the alleged Israeli strike occurred near the city of Hama.
Earlier this week, the IDF launched its biggest, most comprehensive exercise in nearly 20 years, comprising ground, air and sea forces in a simulated attack by Hezbollah on the northern border.
Former military intelligence head Amos Yadlin said the site "produces the chemical weapons and barrel bombs that have killed thousands of Syrian civilians". He has said that is something Israel can not accept.
Israel has long warned that the weapons from Iran and Syria reach to the hands of Hezbollah, Israel's arch enemy.
Yaakov Amidror, Israel's former national security adviser and a former general, said the strike targeted a weapons development and manufacturing site that was producing arms for Hezbollah.