Suu Kyi has been accused by Western critics of not speaking out for the minority that has long complained of persecution.
Wa Lone and Simon Lewis
While the outcome of the by-elections will not affect the balance of power within the parliament, it offers a chance to gauge the popularity of the administration.
The panel urged the government to reconsider a failed programme to verify Rohingyas for Myanmar citizenship.
Human rights monitors and a leader of the mostly stateless Rohingya told Reuters the move risked sharpening intercommunal tensions in the region.
Eight Rohingya women, all from U Shey Kya village in Rakhine State, described in detail how soldiers last week raided their homes, looted property and raped them at gun point.