Baghdad: Another photo shows an overweight masked militant apparently struggling to behead a man identified as a captured Iraqi soldier.
The caption says a second soldier was also beheaded, but his death is not shown.
The authenticity of the photos could not be independently confirmed.
IS spearheaded a sweeping militant offensive in June that overran large areas north and west of Baghdad, and also holds significant territory in neighbouring Syria.
The brutal militant group has killed thousands of people in both countries, some of them in highly-choreographed videotaped sequences in which the victims are beheaded.
Iraqi security forces, backed by Kurdish troops, Shiite militias, Sunni tribesmen and a US-led campaign of air strikes, have managed to regain some ground from IS.
But the jihadists still control significant territory, including three major cities.
The Islamic State group beheaded an Iraqi police officer and a soldier, the latest in a long series of atrocities committed by the jihadists, according to pictures posted online today.
In one photo, a blindfolded man said to be a police lieutenant colonel kneels in a street in front of a row of gunmen.
A masked militant is then shown beheading the victim with a machete, after which his severed head is placed atop his body and the machete driven into his back.
The caption says a second soldier was also beheaded, but his death is not shown.
Advertisement
IS spearheaded a sweeping militant offensive in June that overran large areas north and west of Baghdad, and also holds significant territory in neighbouring Syria.
Advertisement
Iraqi security forces, backed by Kurdish troops, Shiite militias, Sunni tribesmen and a US-led campaign of air strikes, have managed to regain some ground from IS.
Advertisement
COMMENTS
Advertisement
US Army Kills Senior ISIS Official In Syria Russian Prison Siege By ISIS Inmates Ends, Hostages Safe Syrian Man Arrested After Shooting Near US Embassy In Lebanon Capital Over 300 Indian Students Return Home As 105 Bangladeshis Die In Protests "Jindal Group Executive Showed Porn, Groped Me On Flight": Woman To NDTV Full Recovery From Global IT Outage Could Take Time: 10 Points India Hints At Roles Of Pakistan, China That Could Undermine Shanghai Bloc Deadly Viper On The Rise: Bangladesh Grapples With Snake Crisis SBI Recruitment 2024: Registration Begins For 1,040 SCO Track Latest News Live on NDTV.com and get news updates from India and around the world.