Penang PKR chairperson Mansor Othman has cried foul over the transfer of voters into four state constituencies that either his party or Umno had won with a thin majority.

"The number of voters transferred to the four constituencies, since the fourth quarter of 2015 to the first quarter of 2017 were Seberang Jaya (852), Sungai Bakap (1,819), Sungai Achech (654) and Batu Maung (1,908)," said Mansor.

During the 2013 elections, PKR won with a 2,459 vote majority Seberang Jaya, a 1,805 vote majority in Sungai Bakap and a 3,390 vote majority in Batu Maung. Umno won in Sungai Acheh with an 808 vote majority.