A summit of Asian leaders in Thailand was cancelled today after anti-government protesters swarmed into the meeting's venue, renewing doubts about the durability of the government.
The events will pile more pressure on an economy teetering on the brink of recession, especially if foreign tourists are put off by the scenes of chaos and emboldened protesters intensify the fight to kick out Prime Minister Abhisit Vejjajiva.
Mr Abhisit imposed a state of emergency for a few hours in Pattaya, a resort about 150 kms south of Bangkok which was to host the East Asia Summit.
He lifted it after the foreign leaders had left the country. About half of them had had to be evacuated by helicopter from the venue to a nearby military airbase.
The summit fiasco is a huge embarrassment for Mr Abhisit's government, which came to power in December through parliamentary defections that the opposition says were engineered by the army.
The weekend's events will also raise questions about how enduring his government can be.
Four prime ministers over the past 15 months have failed to resolve Thailand's deep political rift between the royalist, military and business elite on the one hand, and a rural majority loyal to ousted Prime Minister Thaksin Shinawatra on the other.
Hundreds of red-shirted Thaksin supporters broke through lines of soldiers and invaded the media centre adjacent to the summit venue, the Royal Cliff hotel, blowing whistles, waving flags and shouting "Abhisit Out".
Troops tried to stop them, but "red shirts" and soldiers came hurtling through a huge picture window at the media centre in a furious scrum. Soldiers then bolted down the road to protect the hotel where Asian leaders were to hold a lunch.
After rampaging about the media centre, an elderly woman in a wheelchair among them, the "red shirts" were soon huddled with reporters in impromptu news conferences around the conference centre, denouncing Mr Abhisit's government as "anti-poor".
ASEAN leaders were scheduled to sign an investment agreement with China this morning, but that meeting was delayed because Chinese premier Wen Jiabai was "stuck in traffic", Thai protocol officials told photographers awaiting at the summit venue.
The Chinese investment agreement is the final piece of a Free Trade Agreement that will create the world's largest free trade area, encompassing 1.9 billion people.
The ASEAN leaders were also scheduled to hold separate meetings with the leaders of Japan and South Korea and then with all three later today in the so-called ASEAN + 3 process.
Southeast Asian foreign ministers yesterday "expressed concern" about tensions in Northeast Asia during a meeting on politics and security.
Agencies