The Islamic State has reportedly burned 15 people alive for trying to escape the besieged Iraqi city of Fallujah, and has also reportedly arrested a woman who pleaded in a video for Western powers to "save us or bomb us," so they can die quickly and end their sufferring.
MailOnline reported that IS captured and killed 15 civilians in Fallujah, which is located west of Baghdad, and is currently being besieged by Iraqi government forces who are trying to liberate the city.
The radical group is said to have sentenced the hostages to death for their attempts to flee, with a source telling Kurdish news agency ARA that living in the IS-held city has become "unbearable."
"Fallujah has been under suffocating blockade for several months. People endure severe shortage of basic materials, amid deteriorating living conditions," the source explained.
The Islamic radicals have also arrested a woman who went on television with a plea to the Western world.
"People are dying because of hunger, there is no medicine, no food, we have no more options left," the woman, who wasn't named, told Al Arabiya News Channel.
She cries: "Save us from Islamic State or bomb us with chemical weapons so we will immediately die and not have a slow, agonising death."
Reports have suggested that IS is struggling to keep control of Fallujah, as it is isolated from other captured territory, and there is difficulty getting supplies in.
Joint efforts by the Iraqi government, Western powers including the United States, and other factions have been determined to destroy IS.
The radicals have become infamous for their numerous beheading execution videos, but they have also burned prisoners alive on a number of occasions.
An Iraqi soldier who escaped IS capture shared in January that some Christians, who have been heavily targeted by IS, have been locked inside caskets and burned alive, alongside suffering torture and other abuse.
"They tortured the [expletive] out of the Christians and some died in the process," Sergeant Karam Saad of the Iraqi military said.
"They would take some and lock them in a kind of casket, and set it on fire from the inside," he added.
IS officials have even burned alive some of their own soldiers who failed to fight to the death in military operations.
"They were grouped together and made to stand in a circle and set on fire to die," one former resident of Northern Iraq who is now living in the United States told Fox News, speaking about an incident in which IS higher-ups sent a message to their rank-and-file fighters by burning alive a group of soldiers who were pushed out of Ramadi, the capital of Anbar province.