DAP's Tanjung Bungah assemblyperson Teh Yee Cheu, who voted for an Umno motion on reclamation in Penang but later apologised for his mistake, has quit his party post.

DAP state secretary Lim Hui Ying said Teh quit his state organising secretary post effective Monday.

"The resignation through an e-mail was addressed to the state chairman Chow Kon Yeow and state secretary," he said.