British counter-terrorism police have obtained warrants to further detain seven Iranian nationals arrested on Saturday in two separate investigations.

LONDON (Reuters) -British counter-terrorism police have arrested eight men including seven Iranians in two separate operations, officers said, in what the interior minister called some of the biggest investigations of their kind in recent years.

British counterterrorism officers have arrested four Iranian men over an alleged plot to attack an unspecified target and three others over a national security threat