It's been reported that SKE48 Team E members Mano Haruka and Yamada Erika will be graduating from the group at the end of the month.

This was announced on March 8th during Team E's theater performance, "Pajama Drive". Mano will graduate in order to prioritize her studies, and Yamada will leave the group to focus on treatment for a herniated disc.

Mano passed the 2nd Generation auditions in March of 2009, and has been a part of Team E since December of 2010. Meanwhile, Yamada joined the group as a 3rd Generation member in November of 2009, and while being a Research Student, she was chosen as a senbatsu member for the single, "1! 2! 3! 4! Yoroshiku!", in November of 2010. She became a part of Team E in December of the same year.

Source: natalie and SKE48 Official Website