Four Arrested In London Bomb Probe

British police have arrested four men in last week's failed London bomb attacks. But they aren't confirming reports that one of the four is one of the suspected bombers.

All four were arrested in the northern city of Birmingham, with one of them arrested as police searched a home and found a suspicious package. The package is being examined by explosives experts, while the suspect has been moved to a high-security police station in central London. The other three remain held in Birmingham.

In a separate development, two other men have also been arrested on suspicion of terrorism while traveling on a train in England's midlands region. It's not clear, however, whether the arrests are part of the London bombings investigation.