The Islamic State has put to death another young man by throwing him off the tallest building in Raqqa, its de facto capital in Syria.
The man, who is estimated to be in his 20s, was accused of homosexuality.
Raqqa fell to the Islamic State in early 2014 and has since become the group's headquarters and seat of power in Syria.
According to the Daily Mail, images released by activist group Raqqa is Being Slaughtered Silently showed the man blindfolded and being dragged to the top of a multi-storey building in an unspecified neighbourhood in Raqqa while a crowd of onlookers gathered below to witness the execution.
The execution attracted a large crowd, some of which had climbed up on the rooftops of nearby buildings to get a "better view."
Raqqa is Being Slaughtered Silently has personnel working undercover to expose the brutality of the Islamic State in its stronghold.
The released images also showed Islamic State fighters, undisguised, filming the execution using their mobile phones.
The Daily Mail said that the images contain the yellow logo of the Al Hayat Media Centre, suggesting that the images were screenshots of an as yet unreleased propaganda video from the Islamic State.
Al Hayat Media Centre handles the production of videos that ISIS releases to promote its activities as well as to encourage recruitment.
ISIS has previously executed several men in Raqqa after accusing them of homosexuality. In December, the group released images showing men suspected of being gay being crucified and left to die. In early February, the miltants threw two allegedly gay men from a multi-storey building. Both men survived the fall but were killed when crowds on the ground stoned them.
Last week, another young man was shown being pushed off a building and stoned to death by onlookers.