Standing tall: Last moments of Jordanian pilot burnt alive by IS

The Islamic State group released a video on Tuesday purportedly showing a Jordanian pilot being burned alive in a cage, in the jihadists' most brutal execution yet of a foreign hostage.

The Islamic State group released a video on Tuesday purportedly showing a Jordanian pilot being burned alive in a cage, in the jihadists' most brutal execution yet of a foreign hostage.

The highly choreographed 22-minute video released online showed images of a man purported to be First Lieutenant Maaz al-Kassasbeh, captured in December, engulfed in flames.

The video, whose authenticity was not immediately verified, enraged officials and the army in Jordan vowed to avenge the murder of the 26-year-old pilot.

A man purported to be Islamic State captive Jordanian pilot Muath al-Kasaesbeh (in orange jumpsuit) stands in front of armed men in this still image from an undated video filmed from an undisclosed location made available on social media. (Reuters)

Islamic State militants released the video purporting to show Kasaesbeh being burnt alive, and Jordanian state television said he was murdered a month ago. (Reuters)

Kassasbeh was captured on December 24 after his F-16 jet crashed during a mission over northern Syria as part of the US-led campaign against the jihadists. (Reuters)

Activists protest in Amman, after the release of a video purportedly showing Mouath al-Kasaesbeh being burnt alive. (Reuters)

The highly choreographed 22-minute video released online showed images of a man purported to be First Lieutenant Maaz al-Kassasbeh, captured in December, engulfed in flames. (Reuters)

Anwar Tarawneh, the wife of Muath al-Kasaesbeh, holds a picture of him at Jordan University in Amman. (Reuters)