The government is in the control of the situation concerning the terror threat so people should not panic, Prime Minister Yingluck Shinawatra said Monday.
Security authorities have been assigned to keep a close watch on the situation to ensure the safety of the public.
The premier was speaking after police raided a building in Samut Sakhon province and confiscated bombmaking ingredients including fertilisers and liquid ammonium nitrate.
The raid was made after terror suspect, Hussein Atris, of SwedishLebanese origin was arrested at a Bangkok airport.