US-led coalition's 'Predator' attack drone was spotted around Urum al-Kubra at the time of attack on the UN convoy, the Russian Defense Ministry stated on Wednesday.

"In the evening on September 19, exactly in the area [where the UN humanitarian convoy was] at an altitude of 3,600 meters was a US-led-coalition UAV flying at a speed of 200kmph," the Russian Defense Ministry spokesman Maj. Gen. Igor Konashenkov said.

'Predator' drone had taken off from Incirlik air base in Turkey and left Urum al-Kubra area half an hour after the incident with UN humanitarian convoy, Konashenkov added.

According to Konashenkov, "the aircraft was by identified by Russia's air surveillance system as a Predator-type UAV."

"This aircraft appeared in the Urum al-Kubra area several minute prior to the attack on the convoy and left the area about 30 minutes later," Konashenkov stressed, questioning the purpose of the Predator's mission.

The Pentagon immediately dismissed the Russian claims by saying the coalition aircraft were not conducting missions at the time of the attack that killed at least 21 people and destroyed 18 trucks with humanitarian aid.

Russian military informed the US Air Force representative that Russian aircraft were not present near Aleppo at the time of the attack on the UN humanitarian convoy, the Russian Defense Ministry said. Russian MoD also denied presense of Russian aircraft near Urum al-Kubra at the time of the attack.