Story highlights The captured F-16 pilot's name is Moaz al-Kasasbeh, his uncle says

"Jordan holds the terror organization ... responsible," Jordanian source says

The plane was reportedly shot down near the ISIS stronghold of Raqqa

Amman, Jordan (CNN) For the first time since an international coalition began striking ISIS, one of its pilots has been shot down and taken captive by the Islamist extremist group.

The captured F-16 pilot is Moaz al-Kasasbeh, a member of Jordan's military, according to his uncle, retired Jordanian Maj. Gen. Fahd al-Kasabeh.

A source in Jordan's armed forces said that the pilot was downed carrying out a mission Wednesday around Raqqa, the militant group's de facto capital in northern Syria, according to Jordan's official PETRA news agency.

"Jordan holds the terror organization and those who support it responsible for the safety of the pilot and the preservation of his life," the source said.

The London-based Syrian Observatory for Human Rights had reported earlier Wednesday that ISIS had shot down an unidentified warplane near Raqqa, a city that has been a chief target in the U.S.-led military coalition's air campaign.