British police said they have arrested three men and a woman on suspicion of Syria-related terrorism offenses.
West Midlands police said on Tuesday that the suspects’ homes are being searched and they are being questioned.
Police said one 45-year-old is suspected of attending a terrorist training camp.
The others are being questioned on suspicion of facilitating terrorism overseas.
The suspects include a 44-year-old woman, her 20-year-old son, and a 36-year-old man.