Fans of K-pop boyband Big Bang gathered on Saturday to see band leader G-Dragon return to civilian life after his discharge from military service.

G-Dragon, 31, whose real name is Kwon Ji-yong, completed almost two years of mandatory military service and was discharged at the headquarters of South Korean Army's Ground Operations Command in Yongin, southeast of Seoul.

Kwon was originally scheduled to be discharged from a base near the border with the Democratic People's Republic of Korea, an area where officials are working to contain African swine fever, which affects pigs. The switch was apparently motivated by a desire to limit traffic in the area.

He had served about a year and eight months of mandatory military service applicable to all male citizens in South Korea.

About 500 Chinese, Japanese and other Asian fans, some of whom waited outside the military base overnight in chilly weather, cheered as G-Dragon emerged from the facility around 8 a.m.

"Thank you for waiting," said G-Dragon, who was wearing a dark brown military uniform and beret. "I will return to my job and faithful to my work."

After brief remarks, he entered a black van and departed as fans took photos, waved and followed the van. He then met with 3,000 fans at an event nearby.

Originally a five-member band, Big Bang, after debuting in 2006, often topped the South Korean music charts and gained a huge following before members began to enter mandatory military service in 2017.

Bandmate Seungri left the band and retired from the music industry in March after he was accused of alleged sex bribery.