Prime Minister Malcolm Turnbull has said Australia's immigration policy is "non-discriminatory and will remain that way", following television host Sonia Kruger’s controversial call for Australia to close its borders to Muslim immigrants.

Kruger appeared on the TODAY Show on Monday and expressed support for a Herald Sun article by Andrew Bolt, which linked Muslim immigration with France's recent terror attacks.

"Personally I think Andrew Bolt has a point here, that there is a correlation between the number of people who are Muslim in a country and the number of terrorist attacks," Kruger said.

She went on to say that she would like Australia's borders closed to Muslims.

Mr Turnbull responded to the calls this afternoon, insisting that Australia would never discriminate on race or religion.

"I'm not going to run a commentary on the commentators. But as you know Australia has a non-discriminatory immigration program and a non-discriminatory humanitarian program, and has done for many, many years and that is not going to change," he said.

Kruger's co-host David Campbell interjected during her comments on the TODAY Show, and said he would like to see "freedom of religion".

"This breeds hate, this sort of article breeds hate," he said.

Kruger later took to Twitter to hit back at users who had labelled her "racist" for the comments, saying she believed she had a right to discuss the issue.

This afternoon, television and radio presenter Ben Fordham spoke out in support of his colleague, saying he would "rather be honest than popular".

"I think Sonia Kruger should be congratulated first and foremost for speaking her mind and not worrying about what everyone is going to say about her for speaking her mind," he said on his 2GB Drive program.

"And I think she’d be surprised if she knew how many people in Australia agree with her.