A US court has sentenced an Islamic State group militant from the UK. El Shafee Elsheikh to life in prison for his involvement with a terror cell.

In April 34-year-old Elsheikh, the highest profile IS fighter to stand trial in the US, was convicted of hostage-taking, conspiracy to murder US citizens and supporting a terrorist organisation, BBC reports.

The judge, while addressing the Sudanese-born Londoner, called his actions “horrific, barbaric, brutal and criminal”.

Meanwhile, it could be recalled that his actions have resulted in the deaths of four US hostages.

Journalists James Foley and Steven Sotloff and aid workers Kayla Mueller and Peter Kassig were all kidnapped and killed at the hands of the cell.

Although, hostage families have expressed a mixture of gratitude and disappointment for the outcome.

In reaction to the development, James Foley’s mother, Diane, called the sentencing a “hollow victory,” but said that it did show that “US justice will find you wherever you are”.

She said, “Our country has lost four of its very best citizens. We families lost loved ones forever.”