North Korea may be preparing to launch military satellite, South Korea says

South Korea's military said on Friday it had detected signs in North Korea of possible preparations for a satellite launch in what would be the nuclear-armed North's effort to place a second military reconnaissance craft in orbit.

South Korea and U.S. intelligence authorities are closely monitoring North Korea's activities, a South Korean military official said.

The activities were spotted at Dongchang-ri, a northwestern area of the country where North Korea's main space flight center is based...