US journalist Steven Sotloff
Media playback is unsupported on your device

Sotloff beheading: Obama warning to Islamic State

3 September 2014 Last updated at 13:51 BST

President Barack Obama has vowed the US will not be intimidated, after Islamic State militants released a video showing the beheading of American journalist Steven Sotloff.

Mr Obama warned: "Our reach is long and justice will be served."

Another US journalist, James Foley, was similarly murdered last month.

BBC security correspondent Frank Gardner reports.

Related Topics