GULF Arab states are funding extreme Islamist groups in Germany with links to ISIS, according to a report by the country’s foreign and domestic intelligence agencies.

Saudi Arabia, Kuwait and Qatar are allegedly providing support and funding for mosques, preachers and faith schools under the fundamental Salafist sect of Islam.

Intelligence reports compiled for Angela Merkel’s government provide fresh proof of the role of foreign money in propping up extremist groups deep inside Europe.

More than 9,000 people have links to Salafism in Germany but many more could be converted, officials warned in the reports seen by newspaper Süddeutsche Zeitung.

The German government is now facing calls to respond to the growing threat posed by Salafism.

MP and Middle East expert Rolf Mützenich said: “The danger is real and shouldn’t be underestimated.

“For quite some time we’ve had indications and evidence that German Salafists are getting assistance, which is approved by the governments of Saudi Arabia, Qatar and Kuwait, in the form of money, the sending of imams and the building of Koran schools and mosques.”

He told Deutsche Welle: “The best way of preventing refugees from being radicalised is speedy and successful integration. To achieve that we need professional prevention and de-radicalisation programs.

“That means more money and resources for specialists in schools, government administration, police, youth welfare organisations, prisons and reform schools.”

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Saudi Arabia, Kuwait and Qatar are allegedly providing support and funding for mosques and preachers

German police have launched a crackdown on Salafist-linked extremists with a series of raids this year aimed at disrupting terrorist networks.

In August armed police arrested a man with Islamist links who is suspected of planning a bomb attack on a festival.

The 27-year-old was said to have links to Salafism and was believed to have been storing material in his flat ahead of a planned attack.