North Korean patrol ships crossed into South Korean territory in the Yellow Sea Monday, as a tense standoff continued for an eighth day.
Seven ships which entered South Korean waters earlier had retreated to northern waters on Sunday, South Korean officials said, but two crossed the border again at about 6:00 a.m (2100 GMT) on Monday.
"The two have remained in our waters since then," a South Korean defense ministry spokesman said.
Some analysts said the North Koreans are attempting to protect the impoverished country's fishing fleet during crab season. Receipts from exports provide one of North Korea's few sources of hard cash.
Source: Flight Daily News