The Croatian government says it cannot be “100 percent” sure that a Croatian man has been beheaded by ISIL-affiliated militants.<br /><br /> Officials are trying to confirm the authenticity of a photo of a headless body, purportedly that of Tomislav Salopek, who was abducted in Egypt. <br /><br /> It has been circulated on social media by supporters of the Sinai Province group, the Egyptian offshoot of the self-proclaimed Islamic State. <br /><br /> “We have to break the silence, somebody has to do it. My duty is to tell the Croatian public that what we’ve seen is horrific,“Croatian Prime Minister Zoran Milanovic told reporters.<br /><br /> “I don’t know if we will be able to confirm that it’s true in the following days. But what we saw doesn’t look good, it looks awful.”<br /><br /> Thirty-year-old Salopek, employed by a French company specialising in oil and gas geology, was kidnapped last month while travelling to Cairo.<br /><br /> Sinai Province had threatened to kill him if Muslim women in Egyptian jails were not freed.