Visiting Iranian parliament Speaker Haddad Adel warned in Damascus Sunday that if Israel ventured to attack Iran's nuclear facilities it would incur severe retaliation.
"If Israel takes such crazy actions as attacking our nuclear facilities, we will give it an unforgettable lesson," Adel told a press conference after meeting with his Syrian counterpart Mahmoud Abrash.
Adel also strongly opposed to refer its nuclear issue to the United Nations Security Council.
A member of Adel's delegation, who asked not to be named, told Xinhua that Syrian President Bashar al-Assad had expressed support to Tehran's right for peaceful use of nuclear energy when meeting with Adel earlier in the day.
Assad also criticized some western countries which maintain silence on Israel's buildup of its nuclear capacities while making no tolerance towards Iran, said the official.
Syria's official SANA news agency reported that Assad had discussed with Adel "the relations of friendship and cooperation between the two countries".
Adel said upon arrival in Damascus Saturday that he would seek coordination with the Syrian side to deal with the external pressure the two countries both suffered from the western countries.
Both Iran and Syria have been under US sanctions as Washington has accused them of supporting Palestinian terror groups and Lebanon's anti-Israeli armed movement Hizbullah.
Washington also accused Iran of seeking to build nuclear bombs and Syria of allowing insurgents to cross into Iraq, which has been denied by Tehran and Damascus.