Sinai-based militant group Ansar Beit Al-Maqdis (ABM) on Monday published online a graphic video showing the kidnapping and murder of police captain Ayman El-Desouki earlier this month.
El-Desouki was kidnapped at a checkpoint on the highway between the cities of Rafah and Al Arish in North Sinai on 11 January, and his body was found near Rafah on 13 January, according to the army.
The first part of the six-minute-long video clip shows images of Egyptian security forces "beating, arresting and detaining pro-Morsi women protesters," to the sound of late Al-Qaeda leader Abu Musab Al-Zarqawi denouncing the silence of Muslim scholars in the face of "the mistreatment of Muslim women."
The second part of the video shows the ABM kidnapping El-Desouki, during which he is seen pleading that he has a pregnant wife.
In the third part, speaking from an unknown location, El-Desouki appears to be made to say that the ministry of interior arrests young women and students and abuses them in Egypt's prisons. He pleads for the release of these women, warning that otherwise more policemen will be targeted.
The last part of the clip shows masked militants executing the police captain, who is blindfolded and on his knees, by shooting him twice in the head.
The video has been removed from YouTube for violating its policies due to its graphic content, but continues to be uploaded and shared online via other pro-ISIS social media accounts.
ABM has previously claimed responsibility for a number of attacks against the Egyptian security forces, including killing 30 army personnel in October. The militants published a graphic video of the attack.
In November, ABM pledged allegiance to Islamic State and changed its name to "Sinai Province".
Egypt’s security forces have been battling a decade-long jihadist insurgency based in the Sinai Peninsula, with militant attacks increasing over the past 18 months and expanding into Cairo and the Nile Delta, killing hundreds of army and police personnel.