"The insurgents, too, will have to talk among themselves before making any decisions," he said. "So it is not clear that we will see a decline in the incidents in the near future."
Other groups fighting in southern Thailand include the Pattani United Liberation Organization, which has made public calls for a separate state.
In the past decade, Malaysia has also brokered negotiations between the Philippine government and the Moro Islamic Liberation Front, the largest Muslim rebel group in the southern Philippines.
That has so far resulted in a preliminary peace pact signed in October to grant minority Muslims in the southern Philippines broad autonomy in exchange for ending more than 40 years of violence that has killed tens of thousands of people and crippled development.
Malaysia's government has repeatedly said it wants to see a peaceful resolution to its neighbors' conflicts and has denied funding, arming or providing any other support to militants.
Doksone reported from Bangkok.
Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.