(CNN) -- A top Israeli official suggested Sunday that his government was behind an airstrike in Syria last week.
Israeli Defense Minister Ehud Barak didn't explicitly confirm or deny his government's involvement in the fighter jet attack, which a senior U.S. official has said targeted a weapons convoy suspected of moving weapons to Hezbollah in Lebanon.
But Barak's remarks at a security conference in Munich, Germany, appeared to be the first public comment by an Israeli official on the incident.
"I cannot add anything to what you've read in the newspapers about ... what happened in Syria several days ago, but I keep telling, frankly, that we've said -- and that's another proof that when we say something we mean it -- we say that we don't think that it should be allowable to bring advanced weapon systems into Lebanon."
Word of Barak's remarks drew quick criticism from Syria's state-run SANA news agency.
"The statement is an overt hint that the aggression came in implementation of the Israeli threats uttered lately under the pretext of targeting 'a weapons shipment,'" the Syrian government news agency said.
Syrian President Bashar al-Assad and other government officials have said the Israeli airstrike actually hit a defense research facility near Damascus, not a convoy. On Sunday, al-Assad said Israel and hostile foreign powers are conspiring "to destabilize and weaken Syria," SANA reported.
Barak said on Sunday that keeping weapons out of Lebanon was a particular concern for his country, and he also criticized al-Assad for a "terrible ... massacre of his own people that's something unprecedented, even in tough neighborhoods like ours."
In recent years, Syria has transferred to Hezbollah Scud missiles that can carry chemical weapons, but U.S. authorities say they do not believe last week's airstrike was linked to growing concerns about Syria's chemical weapons, a senior U.S. official said Wednesday.
Syrian officials have demanded a U.N. response to the incident, which it said violates the U.N. charter and the 1974 agreement between Syria and Israel, negotiated after the Yom Kippur War.
U.N. Secretary-General Ban Ki-moon's office issued a statement Thursday expressing "grave concern" about the incident, but said U.N. officials lacked details about exactly what had happened.
Syrian allies Russia and Iran also condemned the reported attack. And Syria's ambassador to Lebanon, Ali Abdul Karim, said Syria reserves the right to a "surprise retaliation" against Israel, according to Hezbollah's official website, Moqawama.