Published: Aug 12, 2012 7:48 PM EDT

WASHINGTON (AP) - Rep. Paul Ryan says he will only release two years of his tax returns - the same amount Republican presidential candidate Mitt Romney has agreed to release.

Romney's running mate says voters are concerned about the economy, not tax returns. He says the focus on the candidates' tax returns is a distraction from President Barack Obama's record.

Ryan tells CBS' "60 Minutes" that he and Romney will focus on what it takes to turn the country around.

Romney has been criticized for refusing to turn over more tax returns. Romney has released one year so far and vowed to release this year's returns when they are ready.

A Romney adviser says Ryan gave the campaign "several" years of tax returns when he was being vetted, but wouldn't specify how many.

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