Iranian First Vice President Es'haq Jahangiri has reiterated the Islamic Republic's support for the Syrian government, Press TV reported.
In a telephone conversation with Syrian Prime Minister Wael al-Halqi on Sunday, Jahangiri said Tehran would continue supporting the region's "axis of resistance."
He also said Iran is determined to boost its political and economic ties with Syria.
The Syrian premier, for his part, called for closer cooperation between the two states, saying, "With the support of friends, especially the Islamic Republic of Iran, the nation and the government of Syria will put the current crisis behind and become the final victor."
Meanwhile, US President Barack Obama has been pushing Congress to approve of a military intervention in Syria.
The war rhetoric against Syria intensified after foreign-backed opposition forces accused the government of President Bashar al-Assad of launching a chemical attack on militant strongholds in the suburbs of Damascus on August 21.
Damascus has denied the accusation, saying the attack was carried out by militants themselves as a false-flag operation.
Obama has said that Washington must take military action against the Syrian government, which would mean a unilateral military strike without a UN mandate.