DES MOINES (AP) - John McCain's presidential campaign has apologized to Republican rival Mitt Romney's campaign for comments about the Mormon church allegedly made by a volunteer.

The incident dates back to a meeting of Iowa Republican activists in April.

That's where McCain's Warren County chairman is alleged to have made negative comments about The Church of Jesus Christ of Latter-day Saints and the Mormon faith.

Romney is a Mormon.

McCain spokesman Danny Diaz said that on behalf of Senator McCain, the campaign apologizes for any comment made concerning Governor Romney's religion. He says such comments are inappropriate and unacceptable.

Romney's Iowa campaign manager says the campaign has accepted the apology.

It comes just days after Republican presidential hopeful Sam Brownback issued a similar apology.

It was over a campaign staffer's e-mail to Iowa Republican leaders that was an apparent attempt to draw unfavorable scrutiny to Romney's Mormon faith.