Attitudes that conflicted with party understanding, and misunderstandings just before nomination are among the causes of overlapping seats between opposition coalition parties, said PAS president Datuk Seri Abdul Hadi Awang.

The candidate for the Marang parliamentary seat and Ru Rendang state seat said PAS was not against their allies in the election, but decided to field their candidates in several areas to save the party and coalition from negative forces.

"We want to maintain stability, not only during the elections, and also to prevent negative forces from penetrating Pakatan Rakyat," he said.

When speaking at a PAS ceramah at Kampung Tebakang, Mukim Alor Limbat, here last night, Abdul Hadi said the PAS leadership will hold a news conference at the Central PAS Office today for a solution.

"If there are candidates that we fear may not have been stringently chosen, then PAS will take necessary action.

"There was a clash in Johor because we waited for PKR. Nomination was also closed and they weren't there so we were on standby because we didn't want BN to win unopposed. When PAS entered then PKR entered," he said.

Abdul Hadi alleged that he also received information on candidates who had an understanding that was different from the coalition.

"There are some candidates who we fear are involved in selling methamphetamine. How can they be candidates? There are even some who put up pictures of (Vladimir) Lenin, (Joseph) Stalin and Karl Marx at the headquarters. PAS cannot work with such candidates," he said referring to candidates who hold the communist ideology, but did not reveal the individual.