Tens of thousands of Thai opposition supporters have rallied in Bangkok to press the government to step down.
They gave Prime Minister Abhisit Vejjajiva until Monday to call fresh polls and vowed to demonstrate across the capital if he refuses to do so.
The government insists it will not stand down and has tightened security.
The “red shirt” demonstrators are mainly supporters of former Prime Minister Thaksin Shinawatra, who was ousted in a military coup in 2006.
Many of the protesters have come to the capital from Mr Thaksin’s power base in the rural north of Thailand.
The BBC’s Rachel Harvey, at the demonstration, says there are about 100,000 protesters. Red shirt organisers said hundreds of thousands would come.