The proportion of births from multicultural families, among the total number of births in South Korea, hit a record-high last year.
According to Statistics Korea, while the number of children born in multicultural families decreased two percent on-year in 2018, their proportion hit a record five-and-a-half percent.
Vietnamese mothers comprised more than one-third of births in multicultural families.
One-fifth were Chinese.
The number of international marriages also reached a four-year high in 2018.