By Associated Press, Updated: Monday, September 19, 6:34 AM
Officers were also carrying out raids on several homes and a commercial property in the central city of Birmingham as part of the intelligence-led operation.
West Midlands assistant police chief Marcus Beale said the suspects were arrested in or near their homes by unarmed police officers as part of a “large, pre-planned, intelligence-led counter terrorism operation.”
Six men were arrested overnight and were being held under anti-terror legislation. A woman was also arrested Monday morning for failing to disclose information. The suspects are aged between 22 and 32. All were described as being British residents, and police would not give any details about nationalities or ethnicity.
The threat level remained at “substantial” Monday.
“As more details emerge of this plot, the threat level may be reassessed,” according to a British government official who spoke on condition of anonymity because of the sensitivity of his work and the ongoing investigation.