London ( CNN ) -- Nine men have been arrested in the United Kingdom on suspicion of terror offenses , London 's Metropolitan Police said Thursday . The men , ages 22 to 51 , were detained Thursday morning in London on suspicion of being members of a banned organization , supporting a banned organization and encouraging terrorism . They were taken to police stations in central London and remain in custody , a police statement said . Eighteen homes , business premises and community buildings across London are being searched as part of the investigation . Officers are also searching a home in Stoke on Trent in the English Midlands . `` These arrests and searches are part of an ongoing investigation into Islamist related terrorism and are not in response to any immediate public safety risk , '' said the Met Police statement . Police did not give the identities of those arrested nor name the banned organization concerned . But the UK 's Press Association news agency cited sources as saying radical British cleric Anjem Choudary was among those arrested . Choudary , who was a co-founder of the banned UK Islamist group Al Muhajiroun , told CNN last month that the world had been split into two camps . There 's a `` camp which believes that sovereignty and supremacy belongs to God . They are the Islamic State , at the head of which is Abu Bakr al-Baghdadi , '' Choudary said . `` In the other camp you have those people who believe sovereignty and supremacy belongs to man . At the head of that camp is Barack Obama . '' `` I believe this Islamic State will spread , rapidly , and I believe it will be in Europe and even America within decades . '' Cameron lays out plans to counter UK jihadi threat . Parliament recalled . UK Prime Minister David Cameron called Wednesday for Parliament to be recalled Friday to debate the nation 's response to a request from the Iraqi government for airstrikes to support operations against ISIS in Iraq . Speaking in New York , where he 's attending the U.N. General Assembly , Cameron said he was convinced that ISIS is `` a direct threat '' to Britain and that the nation should join international efforts against the group in Iraq . `` What we are doing is legal , it is right , it does not involve British combat troops on the ground . But as ever with our country when we are threatened in this way , we should not turn away from what needs to be done , '' he said . `` I am confident we will get this through Parliament on an all party basis , and I think it is right for our country to be united at this time . '' Any action against ISIS in Syria would require a separate parliamentary debate and vote , he said . Terror threat level raised . The Home Office has listed 60 international proscribed terrorist organizations as of August 2014 . They include networks such as ISIS and al Qaeda , as well as UK-based groups such as Al Muhajiroun , which emerged in 1996 and has operated under a range of other names since being disbanded in 2004 . The UK Home Office last month raised its terror threat level from `` substantial '' to `` severe . '' The government also announced new measures to combat the threat from Islamist extremism , including a radical new measure to ban Britons from coming home once they join jihadi ranks abroad . UK authorities estimate that 500 Britons have gone to Syria and Iraq to fight with Islamist groups . CNN 's Nick Paton Walsh and Max Foster contributed to this report .
India : UK news reports identify one of those arrested as radical cleric Anjem Choudary . The men , aged from 25 to 51 years old , were all arrested in London , police say . The men arrested are suspected of belonging to and supporting a terrorist organization . The arrests ` ` are not in response to any immediate public safety risk , '' police say .