London attack raises fears of IS targeting people with mental health issues

There have been warnings that so-called "Islamic State" may be targeting people with mental health problems to inspire them to carry out violent attacks.

The Russell Square knife attack in London, in which one woman died and five were injured, follows warnings that Islamic State may be targeting people with mental health problems to inspire them to carry out such incidents.

Police said they are keeping an open mind over the motive behind the attack in central London, and said terrorism was "one line of inquiry that we should explore".