UK hostage 'killed' in Nigeria 'cold-blooded murder'

A British construction worker held hostage in Nigeria since 16 February "is likely to have been killed" by his captors, Foreign Secretary William Hague has said.

Brendan Vaughan is one of seven foreign nationals thought to have been killed.

Mr Hague condemned the killings as "an act of pure, cold-blooded murder".

Frank Gardner reports.