Kim Mi-rae and Jo Jin-mi of North Korea clinched their first International Swimming Federation Diving World Series gold medal as a pair with victory in the women's 10 metres synchronised platform event in Montreal.
Kim and Jo scored a total of 329.70 points to beat Canada's Meaghan Benfeito and Caeli McKay at the Olympic Sports Centre.
Benfeito and McKay registered a tally of 328.47 points, narrowly shy of the North Korean team.
China's Lu Wei and Zhang Jiaqi – the World Series leaders who won three of the five 10m synchronised platform competitions last year – could only manage third having scored 320.64.
China fared better in the men's 10m synchronised platform as the new team of Yang Hao and Lian Junjie took gold on 464.52 points.
Two-time Olympic medallist Tom Daley and Matthew Lee earned their first World Series medals as they earned silver on 412.20, while bronze was claimed by Mexico's Kevin Berlin Reyes and Andres Isaac Villarreal Tudon.
Shi Tingmao and Wang Han dominated the women's 3m synchronised springboard, taking gold with a commanding score of 327.00 points to secure their third consecutive World Series triumph.
The Chinese pair finished 20.73 points clear of silver medallists Jennifer Abel and Melissa Citrini Beaulieu, while Australia's Maddison Keeney and Anabelle Smith reached the podium for the third time this season thanks to 303.39 points.
The event continues tomorrow.