BEIRUT (Reuters) - A U.S.-led attack on Syria will be seen as limited if it is now over and there is no second round of strikes, said a senior official in the regional alliance that has supported President Bashar al-Assad in the Syrian war.

“If it is finished, and there is no second round, it will be considered limited,” the official told Reuters.

Syrian state TV said the attack was being confronted by the pro-Damascus “anti-terror axis”, a phrase suggesting that Assad’s foreign allies, Iran and Russia, may be helping to defend Syria.