[UPDATE] 12-19 11:30PM --
South Korea says heavy fog is delaying a plan to stage live-fire drills from an island attacked by North Korea last month.
It was unclear if the bad weather would force the South to scrap its plan to conduct the drills Monday.
Residents of front-line islands have been ordered into bomb shelters, and North Korea has threatened to retaliate, sharply spiking tensions on the Korean peninsula.
A South Korean Joint Chiefs of Staff officer says that if weather conditions don't improve, the drills will likely be delayed until Tuesday. He spoke on condition of anonymity, citing department rules.
He says the drills would already have started on Monday morning if there had been no fog.
YEONPYEONG ISLAND, SOUTH KOREA-- South Korea says it's
going ahead with live firing drills from a border island despite a
threat by North Korea to retaliate.
An officer says South Korean Marines will conduct the artillery
drills on Yeonpyeong Island, the site that was shelled by a North Korean artillery barrage last month.
The officer also says that South Korea's military will "immediately and sternly" deal with any possible provocation by North Korea.
People on the island have been ordered to evacuate to underground shelters. Residents of four other front-line islands also were ordered to take shelter.
At the United Nations, the Security Council failed to agree on a statement to address rising tensions on the Korean peninsula. Diplomats say China refused to condemn the North Koreans for two deadly attacks this year that helped send relations to their lowest point in decades.