Israel is not seriously concerned about threats of retaliation by Syria and Iran after its airstrike on a Syrian research center, Israeli government officials said Monday.

"Israel is not seriously concerned about Iran's or Syria's latest bluff and there is no alert in Israel about these latest round of threats, but we are prepared to respond to any aggression, as we know Iran has the capability and intention of attacking Israel," Israel's Foreign Ministry spokesman Yigal Palmor told Xinhua.

Earlier on Monday, Saeed Jalili, Iran's head of supreme national security council who arrived in Syria Saturday to discuss the Israeli attack, said that Iran will capitalize on all its relationships in the international circles to support Syria, adding Syria is an important part of the Islamic world, which " will never permit any aggression on it."

"There hasn't been additional troop deployment in the north, but we did set two Iron Dome batteries to be prepared to confront any possible aggression," Palmor said.

Israeli Defense Minister Ehud Barak has been the only official so far to acknowledge the strike on Syria.

"When we say something we mean it," Barak told reporters at a press conference in Germany last week. "We say that we don't think it (Syria) should be allowed to bring advanced weapons systems into Lebanon."

Syria said Israeli war jets sneaked off radars and hit a center for scientific research in a Damascus' suburb on Jan. 30.

Western officials said the airstrike targeted a convoy carrying weaponries from Syria to Lebanon as well as the center from where the convoy set off.