SEOUL, South Korea's public broadcaster KBS said Friday that one of its reporters has been detained in Singapore ahead of the landmark summit between North Korean leader Kim Jong-un and U.S. President Donald Trump.

KBS did not provide details on the circumstances under which the reporter was detained as it could not have access to him due to an ongoing probe by Singaporean police.

"We will respect the results of the police investigation and take necessary steps as soon as results are available," KBS said in an emailed statement.

The French news agency AFP said police detained two men who work for KBS on Thursday for alleged illegal entry into the residence of the North Korean ambassador in Singapore.

The issue was seriously discussed during a tea meeting between South Korean President Moon Jae-in and his officials earlier in the day, presidential spokesman Kim Eui-kyeom told reporters.

Kim asked South Korean journalists to exercise caution in covering the summit between North Korean leader Kim Jong-un and U.S. President Donald Trump set for June 12 in Singapore.

Source: Yonhap News Agency