Svetlana Romashina claimed a seventh Olympic gold medal as the Russian Olympic Committee won the artistic swimming final on Saturday with a high-powered routine to continue a golden run stretching back to the 2000 Sydney Games.

Romashina, a veteran of four Olympics, earlier this week became the most decorated Olympian in artistic swimming when she won the duet competition. She has said she intends to retire after Tokyo.

The athletes from ROC won the team contest with a combined 196.0979, the country's sixth successive gold in the event.

READ MORE: Tokyo Olympics Synchronised Swimming: ROC's Romashina sets record with sixth Olympic gold

China retained its silver from Rio 2016 with 193.5310 points, while Ukraine scooped bronze with 190.3018, having secured the country's first ever Olympic medal in artistic swimming - another bronze, in the duet event - earlier this week.

A frustrated Japan, who had hoped to retain its bronze from Rio 2016, and had repeatedly expressed disappointment with its scores during the past week of competition, finished fourth despite a rousing routine to the music of traditional festival drums and flutes.

It is only the second time since artistic swimming became an Olympic event in 1984 that Japan has not medalled, although it has never won gold. The previous time it was shut out of the podium was at London 2012.