Key Vietnamese swimmers in training in Hungary (Photo: webthethao)

They aim to win 6-8 golds across all 40 categories, the official added.

Nine members of the team, including gold medal hopeful Nguyen Huy Hoang, are training in Hungary until April 24.

Vietnam is striving for 140 gold, 77 silver and 71 bronze medals at the regional sporting event, to be hosted by the country this May.

Swimming is set to take place on May 14-19 at My Dinh water sports stadium in Hanoi.

SEA Games 31 will feature over 40 sports, and 526 events with the attendance of some 10,000 athletes and officials from the 11 Southeast Asian countries.

Source: VNA