Government supporters, known as “red shirts”, have planned a mass rally on Saturday.
The US expressed concern and called for restraint from violence in the face of mass anti-government demonstrations.
The protesters want an appointed ‘people’s council’ to run the country.
Over 1,500 protesters entered the compound and submitted a letter addressed to the army chief.
Protesters stormed the grounds of parliament,forcing government ministers to flee by helicopter.
Red-shirted protesters hurled plastic bags filled with gallons of blood into the residential compound of the Thai prime minister,hoping their shock tactics will bring down his government.