Meanwhile, Foreign Minister Mohammad Javad Zarif hit back at US President Donald Trump, who has said Russian Federation and Iran share the blame for an alleged chemical attack in a rebel-held town in Syria. The Iranian death toll may actually be higher.
The Syrian Observatory for Human Rights, a British-based monitor, said at least 14 people were killed including some fighters of various nationalities. Dehghan was reportedly a colonel.
"The crimes will not remain unanswered", Ali Akbar Velayati said during a visit to Syria, according to the official Islamic Republic News Agency.
It is unclear what was happening at the T-4 air base and why the site was chosen as a target. A report by Agence France Presse quoted the organisation's director, Rami Abdul Rahman, as saying that the victims included Iranian fighters, although no official reports were issued in this regard.
Such victories made the USA and the Israeli regime hatch an "evil plot" and falsely accuse the Syrian government of conducting a chemical attack near the Syrian capital, Velayati said. Russia, the Iranian military and Hezbollah members each have been aiding Assad's fight against the rebels in various capacities.
Iranian media on Wednesday published photos purporting to show damage at an airbase in Syria that was allegedly bombed by Israel earlier this week. In early February, Israel shot down an Iranian drone that infiltrated Israel's airspace.
It should be noted that Israel is "believed" to have carried out the attack, but has not acknowledged a role in the bombing of air base T4.
Iran already exerts major influence over Lebanon and has maintained a fluctuating but always present strategic relationship with Hamas and the other jihadist actors in the Palestinian terror arena. However, Israel primarily is signaling to the Iranian regime that its neighboring drone program and permanent foothold in Syria is unacceptable.