Spanish terror suspects held in London

• Two Spanish terror suspects are detained at a home in west London
• No weapons have been found in a search of two properties, police say
• The arrests are not linked to the upcoming Olympic Games in London, police say

London (CNN) -- Two Spanish men were arrested in London early Friday in connection with alleged terror offenses in Spain, police said.

The men, aged 39 and 55 years, were detained at west London home by officers from the Metropolitan Police's Counter Terrorism Command.

Officers continue to search the house where they were arrested, a police statement said. A search of a second home in west London has been completed. No weapons have been found, the statement said.

The two men, whose arrest was made under extradition law, are being held at a central London police station.

A 38-year-old woman also was arrested at the same house as the men for alleged fraud offenses and remains in police custody, the statement said.

Two other men at the same address were arrested for alleged immigration offenses.

The arrests are not linked to the upcoming Olympic and Paralympic Games, the police said.

CNN's Alexander Felton contributed to this report.