A woman who wanted to go to Syria arrested in London

A British woman who was expelled from Turkey for allegedly wanting to join jihadist ranks in Syria was arrested on Thursday on her return to London, police reported.
The woman of 21 years ''was arrested on entering the UK after a flight from Istanbul has landed,'' the police said in a statement.
She is suspected of 'preparing terrorist acts,' police said.
Turkey expelled the woman, who was arrested Monday at a bus station in Ankara.
This week Turkey expelled three other Britons, some teenage boys, who allegedly tried to travel to Syria to fight.
British authorities estimate that some 700 Britons have joined the jihadists of the Islamic State in the Syrian civil war, although it is believed that about half of them have already returned.