A rare daylight drone strike in Syria has targeted a weapons shipment making its way from Iraq. The strike took place near an illegal military crossing used by Iranian proxy militias, the Syrian Observatory for Human Rights (SOHR) and several Iraqi news agencies reported Wednesday afternoon.

The illegal crossing in question is located near Al-Qaim. It is used by Iranian-led militias to move between Iraq and Syria and bring in reinforcement and shipments near the city of AlbuKamal in eastern Syria.

Iraqi media outlets blamed the attack on Israel. If so, the brazen shipment had to be deemed of extremely high value for the Israeli Defense Forces (IDF) to risk a daylight strike. 

SOHR didn’t have a count on any casualties in the immediate area but its observers reported several violent explosions after the drone strike. The Step News Agency reported that the vehicle targeted was carrying an arms shipment belonging to Iranian proxy militias and that the U.S.-led international coalition was behind the strike. An Iraqi security source said to Al-Sumaria News that the source of the strike was not yet known.