Supplied photo shows Maisa Tsuno, a member of popular Japanese rock band Akaiko-en. (Photo use permitted only for the story concerned)(Kyodo)

Maisa Tsuno, a member of popular Japanese rock band Akaiko-en, has died, the group's agency said Monday, with police suspecting suicide.

The 29-year-old guitarist and songwriter for the four-member female band was taken to a hospital on Sunday morning, where she was later pronounced dead. A person who went to see her in Tokyo made an emergency call, people close to her said.

Tsuno's death follows other recent cases of Japanese celebrities committing suicide or apparently doing so, including actress Yuko Takeuchi.

The band was formed in 2010 and became widely known with songs it released in 2012. Tsuno is also known for having composed "Joy!!" for now-disbanded popular male pop group SMAP as well as for her appearances on TV and radio.

Last month, Takeuchi, 40, who won numerous awards for her roles in Japanese films, was found dead at her home in Tokyo. Actress Sei Ashina, actor Haruma Miura and Hana Kimura, a cast member of a reality TV show, committed suicide or apparently killed themselves earlier this year.

Emergency service in Japan: 119

If you are having suicidal thoughts, help is available.

For Japan, call Yorisoi Hotline at 0120279338 (toll-free). Press 2 after the recorded message for consultation in English, Chinese, Korean, Tagalog, Portuguese, Spanish, Thai, Vietnamese, Nepali, or Indonesian. The service in these languages is also available on Facebook messenger.

For those outside Japan, you can find a list of other resources here