Japan wants to raise the matter of two Reuters reporters detained in Myanmar with the country's government at appropriate opportunities, including a visit by Foreign Minister Taro Kono to that country this week, Chief Cabinet Secretary Yoshihide Suga said Wednesday.

Myanmar prosecutors sought charges on Wednesday against the two reporters under the Official Secrets Act, which carries a maximum prison sentence of 14 years, the reporters' lawyer said.

"The Japanese government has conveyed its concern about this matter to the government of Myanmar and going forward, wants to discuss and make appeals at appropriate opportunities, including Foreign Minister Kono's visit to Myanmar," Suga said in response to a question about the issue.