"First indications show that the crash of the Jordanian military plane in the area of the Syrian city of Raqa was not caused by Daesh fire," a military official said using another name for IS.
"But since the wreckage of the plane cannot be reached and since its pilot is not present, we cannot at this moment determine the exact cause of the crash”, reports AFP.
Jordanian Information Minister Mohammad Momani told al-Arabiya TV that a “missile fired from the ground” caused the plane to go down. He added that “efforts to rescue the pilot were unsuccessful.” He stressed that he hoped “intelligence work would succeed in gaining the pilot's release.”
The US military has also rejected the jihadists' claim to have hit the jet with an anti-aircraft missile, saying "evidence clearly suggests that ISIL (IS) did not down the aircraft".
According to the US Department of Defense, partner nations Jordan, Bahrain, Saudi Arabia and the United Arab Emirates have been responsible for 65 airstrikes in Syria. The United States has conducted 553 strikes, reported Voice of America.
The airstrikes are part of the US-led Operation Inherent Resolve, which purposes to defeat the Islamic State.