The Isis militant group has released a photo purporting to show the execution of the Croatian hostage Tomislav Salopek, the Independent reports.


The group previously published a video identifying the man as a 30-year-old who was captured outside Cairo on the 22 July.


Last month, Croatia's Foreign Ministry had said that one of its nationals, with the same initials as as Salopek, had been kidnapped in Cairo on their way to work.


An image, circulated by Isis-affiliated social media accounts, appeared to show Salopek's decapitated body.


Salopek said he worked for CGG Ardiseis, a French oil and gas company, that has an office in a Cairo suburb that is home to many expats.