Two men have been arrested at Heathrow Airport on suspicion of terrorism offences after landing on a flight from Turkey.
The men, both aged 21, from Leicester and Birmingham, were detained by West Midlands counter-terrorism detectives just after 10am on Saturday.
They are being transported back to the West Midlands for questioning on suspicion of preparing for terrorist acts.
The arrests were intelligence-led and there was no immediate threat to the public.