On AKB48's official blog, it was announced that Masuda Yuka who ended her activities as an AKB48 member last December, withdrew from the group's sub-unit DiVA as well.

DiVA is a dance & vocal unit that was originally formed with AKB48 members Akimoto Sayaka, Miyazawa Sae, Umeda Ayaka, and Masuda. Later, they added 6 more members to the unit. Masuda was treated as a member of DiVA even after her�withdrawal�from AKB48, however, on the blog post that was made on January 7th, they officially announced that she's withdrawn from DiVA as well.

According to the AKB48 theater manager, Togasaki Tomonobu's Google+, DiVA is still scheduled to appear on "Unit Matsuri" (to be held on January 23rd) event as it's planned.

Source & Image: Cinematoday

Thanks to Jurinaoshi�for the tip!