He added that the authorities have deemed it necessary to take control of the situation or extensive rallies could have an impact on the business sector.
Prime Minister Prayut Chan-o-cha declared a state of emergency in Bangkok effective from 4am on Thursday to control the escalating pro-democracy protest.
The premier has also reportedly called a special Cabinet meeting on Friday to review the declaration of the state of emergency.
Under related laws, the declaration has to be considered within three days.