In the nine-and-a-half minute bulletin, the presenter went on to discuss the killing of a top Islamic State commander at the Yarmouk refugee camp in Damascus, Syria, as well as the extremist group's campaigns across Iraq and Libya.
"They've had a consistent strategy to appeal to Western Muslims," Firas Abi Ali, senior manager of MENA (Middle East and North Africa) at IHS Global Insight, told CNBC by phone.
"The Islamic State has consistently shown a lot of media savvy, the quality of their production is consistently quite high...They know how to construct an appealing, consistent narrative…
[And] wherever there's susceptibility to this narrative, IS tries to capitalize on local language."
The bulletin added to the broadcasts the Islamic State (also known as ISIS) already does in Russian and Arabic. Ali noted that the Islamic State's YouTube videos were often in English, and that the group's monthly magazine "Dabiq" was published in both Arabic and English.
Eckart Woertz, a senior researcher at the Barcelona Centre for International Affairs and a Middle East specialist, said that more English content could help the Islamic State attract funds from supporters in the West, as well as recruits for the cause.
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