South Korean archaeologists said Tuesday they have unearthed a rare neolithic period wooden boat oar, believed to date back about 7,000 years but still in good condition.

The oar was discovered in mud land in Changnyeong, 240 kilometres (140 miles) southeast of Seoul, the Gimhae National Museum said.

One of the oldest boats or related artefacts was found in China's Zhejiang province in 2005 and was believed to date back about 8,000 years....