
Pirapan spoke during the query session at the House.
The Justice Ministry was cooperating closely with the other two ministries, Defence and Information and Communication Technology, to take prompt action against offenders for insulting the country's revered institution, he said.
Some 3,000 to 4,000 Websites have been targetted for investigation on the suspicion of condoning the offensive messages, he said.
Police have about 40 ongoing cases relating to lese majeste and the Department of Special Investigation is trying to identify culprits.
PM's Office Minister Sathit Wongnongtaey said the government was coordinating with relevant agencies to penalise community radio stations that have aired insulting remarks against the monarchy.