South Korean singer Moonbin, a member of K-pop boy band Astro, has died at the age of 25, his music label Fantagio said on Thursday.

"Members of Astro and fellow artists and staff at Fantagio are deeply saddened and shocked as we mourn him," the label said in a statement.

Mooonbin was a child actor before making his debut as a member of Astro in 2016. He was set to appear at a concert in the southern city of Busan next month as part of sub-unit Moonbin & Sanha.

Local media reported that the singer was found dead at his home in the Gangnam district of Seoul and that suicide was suspected. Police declined comment.

Suicide is among the leading causes of death for young people in South Korea. The country has the highest suicide rate among the OECD group of wealthy nations. (Reuters)