A K-pop star charged with violating South Korea's anti-prostitution law may have to join the country's army and face trial in a military court.

Last week, prosecutors indicted former Big Bang member Seungri, whose real name is Lee Seung-hyun, on charges of violating laws on prostitution, illegal gambling and foreign currency trading.

The state-run Military Manpower Administration said Tuesday it sent Seungri documents asking him to report for 21 months of mandatory military service, a requirement for all able-bodied men in South Korea, because prosecutors had ended their investigation of him.