WASHINGTON (AP) -- The White House is calling for "serious steps" by China to stop cyber theft that is intolerable to the international community.

National Security advisor Tom Donilon's comments Monday reflect growing concern in Washington over the security risk posed by cyber intrusions and the economic costs for America.

Donilon said U.S. businesses are increasingly speaking out about cyber theft emanating from China "on a very large scale." He said Beijing "should take serious steps to investigate and put a stop to these activities" and recognize the risk to international trade and to U.S.-China relations.

Donilon was speaking in New York on Asia policy. He stressed the importance of constructive relations with Beijing.

He said diplomatic relations were good but military dialogue needs improving to prevent the risk of accidental conflict.