N Korea silent about apparent detention of US soldier who bolted across border

North Korea was silent about the highly unusual entry of an American soldier across the Koreas' heavily fortified border although it test-fired short-range missiles Wednesday in its latest weapons display.

Nearly a day after the soldier bolted into North Korea during a tour in the border village of Panmunjom, there was no word on the fate of Private 2nd Class Travis King, the first known American detained in the North in nearly five years. The North's missile launches Wednesday morning were seen as a protest of the deployment of a U.S. nuclear-armed submarine in South Korea the previous day and weren't likely related to King's border crossing.

"It's likely that North Korea will use the soldier for propaganda purposes in the short term and then as a bargaining chip in the mid-to-long term," said Yang Moo-jin, president of the University of North Korean Studies in South Korea.

King, 23, was a cavalry scout with the 1st Armored Division who had served nearly two months in a South Korean prison for assault. He was released on July 10 and was being sent home Monday to Fort Bliss, Texas, where he could have faced additional military discipline and discharge from the service.

He was escorted as far as customs but left the airport before boarding his plane. It wasn't clear how he spent the hours until joining the Panmunjom tour and running across the border Tuesday afternoon. The Army released his name and limited information after King's family was notified. But a number of U.S. officials provided additional details on condition of anonymity because of the sensitivity of the matter.

King's mother told ABC News she was shocked when she heard her son had crossed into North Korea.

"I can't see Travis doing anything like that,"...