The Trump administration has informed the UK that it will not seek the death penalty for two of the high-profile ISIS members known as "the Beatles," in an effort to convince Britain to provide critical evidence that can be used to prosecute the operatives in US courts.

"On behalf of the US Department of Justice, I am writing to provide an assurance that if the United Kingdom grants our mutual legal assistance request, the United States will not seek the death penalty in any prosecutions it might bring against Alexanda Kotey or El Shafee Elsheikh, and if imposed, the death penalty will not be carried out," Attorney General William Barr wrote in a letter to UK Home Secretary Priti Patel.

Read more: CNN