South Korean news reports say North Korea is preparing to test fire more short-range missiles, following this week's reported launch of two missiles.
According to the reports, intelligence sources believe the North has deployed 10 missiles on Chodo, a small island navy base off the peninsula's western coast. The missiles include land-to-ship and ship-to-ship missiles.
Pyongyang has banned all ships from traveling near Chodo until October 15.
North Korea reportedly fired two missiles from Chodo on Monday as part of a military drill. But the firings occur at a time of increased tensions between the two Korean rivals, and speculation about the health of North Korean leader Kim Jong Il.
South Korea's Yonhap news agency says the North used an aging Russian-made aircraft to fire the two short-range missiles earlier this week, according to a source with knowledge of North Korean military affairs.
Some information for this report was provided by AFP and AP.
