Government spokesman Phay Siphan said Thai political strategists have used the border situation to unseat two prime ministers.
Friday's fighting included the firing of multiple rockets from vehicle platforms and from tanks.
The Sam Rainsy Party holds 26 of 123 National Assembly seats; the Human Rights Party holds three.
According to reports, Thai Foreign Minister will bring a message to Cambodia Friday saying Thailand has no intention of war.
Mu Sochua had her immunity stripped by the Assembly in 2009, after she was sued by Prime Minister Hun Sen for defamation.
Yoeung Baloung was supposed to be serving 13 years on charges related to illegal logging.
The Ministry of Interior last week said it was adjusting provisions in the law that were main areas of concern for many NGOs.
The pagoda was built by Cambodians in 1998 on land claimed by Cambodia.
The Sam Rainsy Party is preparing for the next elections, but whether or not its leader will join them remains an open question.
The Cambodian government denied the findings of an annual Human Rights Watch report.
The Cambodian government on Wednesday issued a strong rebuke of the Thai “yellow shirt” protest movement.