(BBC) - Scientists say 8,000-year-old pottery fragments have revealed the earliest evidence of grape wine-making.

The earthenware jars containing residual wine compounds were found in two sites south of the Georgian capital, Tbilisi, researchers said.

Some of the jars bore images of grape clusters and a man dancing.

Previously, the earliest evidence of wine-making was from pottery dating from about 7,000 years ago found in north-western Iran.

The latest finds were published in the journal Proceedings of the National Academy of Sciences (PNAS).