SEOUL, Tuesday 23 November 2010 (AFP) - South Korea warned North Korea it would "sternly retaliate" for any further provocations after dozens of shells were fired at a South Korean island on Tuesday.
"Our military... will sternly retaliate against any further provocations," a presidential statement said.
"North Korea's shelling of Yeonpyeong island constitutes a clear armed provocation. Furthermore, its reckless shelling of civilian targets is unpardonable.
"North Korean authorities must take responsibility."
Military officials said the shelling killed one marine and injured 13 other soldiers. Homes on the island were set ablaze but civilian casualties were unknown.
The South has ordered its military on highest alert.