South Korea today urged North Korea to apologise over the sinking of one of its warships, after the United Nations condemned the attack. The UN Security Council yesterday unanimously adopted a statement deploring the sinking of the South Korean warship Cheonan in the Yellow Sea in March, with the loss of 46 lives. The declaration underscored the importance of preventing such further attacks or hostilities against South Korea and praised Seoul for the restraint it has shown since the attack. South Korea's foreign ministry said it welcomed the UN's stance. It said the government urges the North to respect the spirit of the statement, clearly accept its responsibility and apologise. Meanwhile, a defence ministry spokesman said South Korea would go ahead with a naval exercise with the United States in the Yellow Sea despite protests from China. He said the date and methods have not yet been decided. China on Thursday warned the United States and South Korea against holding the war games near its waters, and urged them not to add to tensions with its ally North Korea.