The Islamic State has elaborated on their claim for responsibility for the downing of a Russian passenger plane over Egypt in October, by releasing a photo showing the materials of the bomb used to bring it down.

As part of its newest issue of Dabiq, ISIS' English-language propaganda magazine, the terrorist group says it brought down the plane with an improvised explosive device, otherwise known as an IED, according to Examiner.

The photo showed a yellow can of Schweppes Gold, a flavored soda distributed in Egypt, and what appeared to be a detonator against a blue background. The group also published a picture of plane debris with images of passports superimposed on top, which are said to have belonged to the "dead crusaders."

ISIS' reasoning for the attack was also explained. They said the attack on the Airbus A321-200 was "to show the Russians and whoever allies with them that they will have no safety in the lands and airspace of the Muslims, that their daily killing of dozens in Shām [Syria] through their airstrikes will only bring them calamities, and that just as they kill, they will be killed," according to Business Insider.

The group also explained that it "discovered a way to compromise the security at the Sharm el-Sheikh International Airport," but declined to go into further detail.

ISIS revealed that their original target had been a plane from one of the countries participating in the U.S.-led coalition that had been conducting airstrikes on them in Syria and Iraq, but decided to target a Russian plane instead after Moscow began launching airstrikes in Syria in September, according CBS News.

This declaration comes after Russian officials came to the conclusion that a homemade explosive device brought down the plane, and Russian President Vladimir Putin promised retribution on ISIS for doing so.