Singapore swimmer Joseph Schooling qualified for the semi-finals of the men's 200m butterfly at the Fina World Championships in Barcelona on Tuesday.

The 18-year-old clocked 1min 57.23sec to rank 14th out of the 35-strong field.

He will take to the pool again in the semi-finals early Wednesday morning (Singapore time).

Meanwhile, Quah Ting Wen failed in her bid to reach the semi-finals of the women's 200m freestyle. The Singaporean's time of 2min 2.57sec saw her rank 29th out of 45 swimmers.