Mette Frederiksen, the justice minister, wants to change the law to prevent extremist preachers from entering Denmark, Metroxpress reports.
She told the newspaper she has asked the Justice Ministry, the Immigration Service and the police intelligence agency PET to come up with proposals before the summer holiday to bring about a change to the visa rules.
"I don't think extremist preachers should be allowed to travel to Denmark and spread hateful messages," she said.