(DISTURBING PHOTO) Image posted of the beheaded Tomislav Salopek!

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"Salopek was executed because of Croatia's participation in the war against ISIS" after "the expiry of the 48-hour deadline, which was granted to the Egyptian government to release prisoners," according to the Twitter pages where militants leave messages

Members of the Islamic countries claim to have killed Tomislav Salopek, accoring to agencies AP and AFP. Official information from the Ministry of External Affairs are still lacking. Images depicting the severed head of Tomislav Salopek surfaced on Twitter, but the authenticity of this photo has not yet been confirmed.

- Read more news about Tomislav:

Sadness and shock in Tomislav's hometown: Neighbors can not believe that the Islamic State really killed him!

REST IN PEACE: This is how Croats said goodbye to the cruelly murdered Tomislav (PHOTO)

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On Twitter pages where militants leave comments, it read "Salopek was executed because of Croatia's participation in the war against ISIS" after "the expiry of the 48-hour deadline, which was granted to the Egyptian government to release prisoners."

JIHADISTS HAVE ARRIVED NEAR ONE SERBIAN TOWN: A massacre like the one in Macedonia is underway!

We remind you that Tomislav Salopek was abducted on July 22 in the morning while traveling to work for a French compan with the company car. His car was stopped by a group of armed groups men, who kicked out his driver and took Tomislav towards an unknown direction.

JIHADISTS HAVE ARRIVED IN SERBIA: Here is where their MAIN BASE is and what they will attack first!

A week ago, a video clip was released where he spoke to the camera, repeating his personal information and explaining that the Islamic State is ready to exchange him for "Muslim women imprisoned in the prisons of Egypt."

 ISIS ATTACKS FOR THE WEEKEND? Security services warn of terrorist attacks!

- The agreement must be reached in the next 48 hours. Otherwise, the soldiers of the Islamic State will kill me - said Tomislav on the tape.

You are cautioned that the photo is disturbing. Click HERE to see it.

(Telegraf.co.uk./ 24sata.hr)