North Korea warned Friday that it would exercise its right to self-defense "more intensively" as it condemned recent joint air drills among South Korea, the United States and Japan.

By bno - Taipei Bureau In a sharp response to joint military exercises involving South Korea, the United States, and Japan, North Korea has vowed to 'more intensively' exercise its right to self-defence.

North Korea warned Friday it will "more intensively" exercise the right to self-defense, denouncing South Korea, the United States and Japan for staging combined air drills, involving U.S. B-1B bombers.

Airlines have been increasingly outsourcing repair and upkeep work to other countries, but experts and consumer groups disagree about its impact on safety.

Investigators found bird feathers and blood in the two engines of the Boeing jet that crashed in South Korea on Dec. 29, a person familiar with the probe told Reuters on Friday. Jeju Air 7C2216, which departed from the Thai capital Bangkok for Muan county in southwestern South Korea,