NEW YORK — Fox News commentator Bill O’Reilly says he could have been clearer about a man who appeared on his show last week billed as a Swedish national security adviser.

Responding to criticism from officials in Sweden and liberal observers, O’Reilly said on Monday night’s episode of “The O’Reilly Factor” that he should have explained that Nils Bildt had no role in the Swedish government, although he is a national security consultant.

Bildt appeared on O’Reilly show Thursday and linked Muslim immigration to social problems and crime.

The Swedish Defense Ministry and Foreign Office said they had no knowledge of Bildt.