朝鲜威胁攻击关岛、夏威夷及美国本土

North Korea has issued fresh threats against the United States, this time warning it could fire rockets on Guam, Hawaii and the U.S. mainland in retaliation for American bomber sorties.

The Korean People's Army also said Tuesday that "all artillery troops including strategic rocket units and long-range artillery units" have been placed in a "combat ready posture."

It is the latest in a series of threats by Pyongyang against the U.S. and its regional allies. North Korea's rockets are not believed to have the ability to hit the U.S. mainland.

The statement came just hours after South Korean President Park Geun-hye warned the North to abandon its nuclear weapons and stop making provocations, saying this is the only way for Pyongyang to survive.

Ms. Park made the comments during a speech to mark the third anniversary of the deadly sinking of the South Korean warship Cheonan - an attack that Seoul blames on Pyongyang. The North denies conducting the attack, which left 46 sailors dead.