Two men have been arrested in the North in connection with a series of suspected Real IRA bomb blasts in Birmingham, Ealing and outside the BBC.
The men, aged 24 and 36, were seized on Saturday for questioning about the explosions.
Both arrests were made under the Terrorism Act 2000 at the request of the Metropolitan Police's Anti-Terrorist Branch.
The younger man was taken to a central London police station yesterday where he remains in custody.
The 36-year-old was released from custody in Northern Ireland this afternoon.
A Scotland Yard spokesman said they would not discuss the arrests further at this stage.
On March 3 2001 a car exploded outside BBC Television Centre in Shepherd's Bush, west London, slightly injuring an Underground worker.
Five months later, on August 3, another car blew up in a street in Ealing, west London, injuring 11 people.
On November 3, last year, there was another car bomb near the Bull Ring in Birmingham, but it did not detonate properly.
PA
