The two men from Birmingham arrested on suspicion of terrorism offences relating to activities in Syria did not pose any imminent threat to the public, the West Midlands Counter Terrorism Unit chief said.
Detective Chief Supt Kenny Bell said following the men's arrest at Heathrow Airport:
We took action this afternoon in order to ensure we can properly understand what activities these men have been engaged in whilst in Syria, not because they posed any imminent threat to the public.
More top news
You can buy just about anything on Alibaba, including some very unusual items.
Firefighters across California have been battling major wildfires in what could be the most destructive wildfire season on record.
This summer's fundraising juggernaut, the ALS Ice Bucket challenge, has raised almost £7m in the fight against Motor Neurone Disease.