An airstrike has reportedly hit trucks carrying arms destined for Iran-backed militants in Syria's Bukamal, near the Iraqi border, killing one and injuring two, Syrian media and IRGC-backed groups say.

The Islamic Resistance in Iraq, a coalition of Iran-backed militants that has been launching drone and rocket attacks against US and Israeli interests in the region over the past year, says a member of its Kataib Sayyid al-Shuhada has been killed in the Friday airstrike on his car in an area close to the Syrian-Iraqi border.

The UK-based Syrian Observatory for Human Rights (SOHR) says two other people were also wounded in the airstrike against the positions of Tehran-backed militants in Bukamal.

Syrian sources say "trucks carrying rockets and communication equipment" for Tehran-backed fighters were destroyed in the Friday attack.

The SOHR director said the attack targeted Sokkariyeh in the countryside of Bukamal, where "a gas station belonging to the Iranian militia is located".

The IRGC-affiliated Sabereen News has attributed the strike to the US military's drones or fighter jets.

Israel has repeatedly – almost regularly – struck these areas, often claiming to be destroying weapons storages or shipments.

However, the US has also launched airstrikes in this region, killing several high-ranking members of the IRGC and its allied groups in a recent retaliatory attack.