Tens of thousands of Chinese shouted, pushed and shoved for their last chance at purchasing Olympic tickets today, threatening to break through barricades.
Ticket hopefuls and security officials screamed back and forth as tempers flared just two weeks before the Beijing Games begin on August 8th.
Loudspeakers blared over and over again, telling people to queue patiently as minor scuffles broke out in the crowd and between reporters and police who struggled to keep order.
"We are doing everything we can to keep the situation calm," a police spokesman told reporters, estimating the crowd at more than 40,000.
Even before dawn broke, some people tried to charge the gate, prompting a swift response from officials, witnesses said.
Police were also removing people from the queue for being too pushy and at least one man was detained.
Prospective buyers have been limited to two tickets at the same competition, but officials have promised the last tranche holds tickets for events at every venue, if not every event.
Many want tickets for an event in the National Stadium, dubbed the Bird's Nest, or the Water Cube, the two showpiece stadiums that have changed Beijing's landscape.
One man surnamed Lei, from the eastern province of Anhui, was rewarded for his two-day wait in line with tickets to the final of the 110 m hurdles.
"I just feel so lucky to be able to see Liu Xiang run at the Olympics," said Lei (24) referring to the Chinese hero and defending champion.
Wang Zongmao (73) also queued for two days to secure tickets to a diving event.
"It's been tough, it's very hot, but it's worth it to participate in the Olympics," Wang said.
Long queues had already formed by Wednesday afternoon, a day after Olympic organisers announced the final tranche of 820,000 tickets would go on sale.
By yesterday, 10,000 people had formed a line snaking hundreds of metres away from the booth that opened on Friday, many hunkering down inside tents or under umbrellas to shelter from the 35 degree Celsius heat.
Police threw bottles of water into the crowd, dozens of ambulances stood by to come to the aid of those in line, and the hundreds of police and paramilitary People's Armed Police forces were also feeling the strain.
Tickets for the Games range in price from 5,000 yuan (€467) for the opening ceremony to just 30 yuan (€2.80) for the softball preliminaries.
Beijing's sale of the 7 million-plus Olympic tickets on offer has been swift, but not without incident. Prospective buyers complained on blogs and chat-rooms of not being able to complete purchases after the third batch of tickets was released in May.
The former Olympic ticketing chief was sacked last November after the ticketing website crashed on the opening day of the second round of sales.
Authorities are also going after scalpers. The Beijing News said 44 had been detained, including one who had been selling 50 yuan tickets for a basketball match for 5,000 yuan.