Anti-government demonstrators storm through the 14th ASEAN convention hall Saturday in Pattaya, Thailand, at the 14th ASEAN summit. Thai authorities have canceled the remainder of the summit. A Thai government officials say a summit of Asian leaders has been canceled for security reasons. The announcement Saturday came after more than 1,000 anti-government protesters smashed through glass doors to storm into the convention hall where some of the meetings were scheduled to take place.

Pattaya, Thailand ? Thailand evacuated Asian leaders by helicopter after hundreds of anti-government protesters stormed into their summit site Saturday, forcing the country’s embattled prime minister to cancel the meeting.

The latest fiasco in Thailand’s political crisis increased the threat of violence and a possible military crackdown.

More than 1,000 demonstrators broke through a wall of unarmed soldiers, smashed through the convention center’s glass doors and ran through the building, blowing horns, waving Thai flags and shouting demands for Prime Minister Abhisit Vejjajiva to resign.

They declared victory after Abhisit was forced to cancel the 16-country summit, where leaders of regional powers China, Japan and India, and the U.N. secretary-general and president of the World Bank, planned to discuss the global financial crisis.

Abhisit later denounced the protesters on national television as the “enemies of Thailand.”

The country’s political tension has simmered since former Prime Minister Thaksin Shinawatra was removed by a military coup in 2006. Thaksin opponents marched last year to remove Thaksin’s allies from power, even shutting down the country’s main international airport for about a week in November. After a court ordered the removal of the previous government, Abhisit was appointed by Parliament in December — sparking Thaksin supporters to take to the streets.

Their numbers grew to 100,000 in the capital, Bangkok, last week, and some in Pattaya smashed the window of a vehicle carrying the prime minister, who was unharmed.

Seizing the international spotlight of the East Asia Summit this weekend, protesters converged on the seaside city of Pattaya to push for Abhisit’s resignation — seeking to embarrass him in front of other Asian leaders.

“We have won. We have stopped them from holding a summit,” Jakrapob Penkair, a protest leader, said in Bangkok. “But we have not achieved our goal yet. We will continue to protest in Bangkok until Abhisit resigns.”

Abhisit imposed a state of emergency after the summit was overrun, but revoked it six hours later after regional leaders were safely airlifted to a nearby military airport.