BANGKOK - Opposition activists in Thailand rejected a government offer for dialogue on Sunday after Prime Minister Abhisit Vejjajiva ruled out dissolving parliament and assigned a junior minister to attend the talks.

Red-shirted supporters of ousted former premier Thaksin Shinawatra, who rallied for an eighth day on Sunday, insisted they had not closed the door but would talk only with Abhisit and on the condition that house dissolution was on the agenda.

Abhisit earlier said Education Minister Chinnaworn Boonyakiat would represent the government at Monday's talks, which irked the opposition, who have vowed to protest in Bangkok for at least two more weeks, with reinforcements coming in from the provinces.