SHANGHAI, Sept. 21 (Xinhua) -- Japanese pop group SMAP has put off their concerts in east China's Shanghai, said the Chinese organizer of the event in a statement Tuesday.

The two concerts, scheduled for October 9-10, have been temporarily postponed due to technical problems, according to the statement.

The organizer did not say when the concernts would be rescheduled.

The group previously called off a show in Shanghai in June.

SMAP, the famous Japanese idol group, has been active for nearly 20 years after the release of their first CD in 1991. The current members are Nakai Masahiro, Kimura Takuya, Kusanagi Tsuyoshi, Inagaki Goro and Katori Shingo.