The men's final ebbed and flowed, with the teams left level at 10-10 at half-time and 20-20 after the regulation 14 minutes.

Fiji's Josaia Ralulu was handed a red card for collecting two yellows in the second period, and Ross Burnie delivered the decisive blow for Scotland 2min 57sec into extra-time when he crossed the whitewash to seal the Commonwealth Youth Games title for his team.

They became the first Scottish side to win a team event at a Commonwealth or Commonwealth Youth Games.

Scotland began with a 22-14 victory against Canada and 52-0 thrashing of Jamaica, but were then beaten 32-5 by final opponents Fiji in their last group match.

They edged past South Africa 19-17 and overcame hosts Trinidad and Tobago 43-5 to seal a place in the final, where they turned the tables on Fiji.

Scotland captain Johnny Ventisei explained how his team overturned their group stage to Fiji in the final.

"We played them [Fiji] earlier on yesterday and lost, so we knew things we could work on from that, but we still knew in the final they were going to turn up with their flair, and they did that," he said.

"It was a great final, an absolutely amazing final.

"It went to golden point in the end, and credit to them as well they put on a great show."

South Africa thrashed Canada 52-0 to win men's rugby sevens bronze.

The women's final featured Australia and Canada, as it did at the last edition of the Games six years ago in the Bahamas.

Australia successfully defended their title with a comfortable 50-0 win, seven different players scoring tries.

Piper Simons notched two five-point hauls for her team in the final.

Australia had dominated the women's tournament from their opening 71-0 victory against Trinidad and Tobago, following that with a 33-0 win against Canada, 26-7 triumph over Wales, 45-0 thrashing of Kenya and 43-5 success against Fiji.

"Our emotions from the start were running high," one of the team's stars in Ava Wereta said afterwards.

"We were so keen, so pumped up representing Australia out there."

Fiji staved off the challenge of Kenya 22-10 to take women's bronze.

Triathlon had concluded earlier in the day in Tobago with the mixed team relay super sprint race at the Buccoo Beach Facility.

Women's individual champion Aspen Anderson and men's individual bronze medallist Jack Latham combined to win the mixed team for Australia, notching a time of 40min 58sec.

Alex Robin and Jessica Heeps were 25sec further back for Scotland in second, with Jersey's Luke Holmes and Siena Stephens completing the podium in 41:37.

Tomorrow is set to be the penultimate day of competition at the Commonwealth Youth Games, with fast5 netball and beach volleyball events continuing in Tobago.