Hanoi, May 19 (VNA) - Vietnam's track and field athlete Lo Thi Hoang broke the SEA Games record in the women's javelin throw of 56.37m and won the gold medal at the 31st Southeast Asian Games (SEA Games 31) on May 18.

The record of 55.97m set by Thai athlete Buoban Pamang at the 24th SEA Games in 2007 in Thailand was unbeatable for 15 years.

Hoang is one of the four athletes from ethnic minority groups in northern Son La province at SEA Games 31.

In the previous SEA Games, she only won a silver medal in women's javelin throw with 55.77m.

As of May 18, Vietnamese track and field athletes brought home 17 gold medals, completing the team’s target at SEA Games 31./.