Margaret Hassan, who's head of Care International's operations in Iraq, was taken in capital Baghdad by an Iraqi group who haven't named themselves.

It's thought she hasn't been harmed. She has lived in the country for 30 years, and is married to an Iraqi.

Foreign Secretary Jack Straw said he was "very concerned", and the Foreign Office say it is working with Iraqi authorities to find out what happened.

A video of Mrs Hassan with her hands tied together has been shown on the Arab news channel al-Jazeera.

This kidnapping comes less than two weeks after another British hostage, Ken Bigley, was killed by his kidnappers in Iraq.