Huge numbers of undocumented migrants are failing to adopt the cultures of their new homes – according to Czech President Milos Zeman.
But he claimed there were obvious examples all over Europe which showed Muslims were not willing to adopt European laws and customs.
The anti-immigration left-winger claimed, instead, many were choosing to live in Muslim-dominated no-go zones and were putting fellow citizens at risk.
“You will learn about the so-called no go areas and ‘excluded neighbourhoods.’ I do not rule out the possibility of positive examples though.
“As for the Czech Republic, the Muslim community is very much limited here. I am warning against its strengthening.”
In 2015, he called the surge in refugee numbers “an organised invasion” and urged young men from Iraq and Syria to “take up arms” against ISIS instead of fleeing their homes.
And he warned Muslim migrants who “respect Sharia instead of Czech laws” would ”deprive” the nation of female beauty by increasing the practice of wearing head coverings.
He said: “The experience of western European countries which have ghettos and excluded localities shows that the integration of the Muslim community is practically impossible.
“Let them have their culture in their countries and not take it to Europe, otherwise it will end up like Cologne.
“Integration is possible with cultures that are similar, and the similarities may vary.”
The Czech Republic agreed to accept 160,000 refugees under a European Union quota scheme.
But few chose to remain in the country, with the majority conniving on to Germany and other Western states.
Last April, a dossier produced by the Hungarian government claimed London, Paris, Stockholm and Berlin were among several major European cities that feature on a bombshell list of 900 lawless zones with large immigrant populations.
Ministers from the central European nation wrote in their report that authorities had “no control” over residents in these neighbourhoods, adding that the growth of radical Islam is “increasing the terrorist risk and imperilling our culture”.