N.Korea Says It Adds to Nuclear Arsenal

SEOUL (Reuters) - North Korea said Monday it has increased its nuclear arsenal to help prevent a U.S. attack on the reclusive communist state, South Korea's Yonhap news agency reported.

``We've taken serious steps of boosting our nuclear arsenal and we are also prepared to mobilize all of our military force against any provocative moves by the enemy,'' Yonhap quoted the North's state KCNA news agency as saying.

It was the first time that Pyongyang actually said it had boosted its nuclear weapons programs -- it had said last week it may increase its arsenal to maintain a balance of power in East Asia and help prevent a U.S. attack.