Although protests disrupted the torch relay before the Games, security was not tested until the closing ceremony.
On Saturday night, a protest by an Iranian exile group had disrupted the United States-Iran bout.
The protest disrupted the check point for two hours.
Twice in the last two weeks, protests by French farmers have disrupted ceremonies involving President Francois Mitterrand.
The anti-Government protests apparently disrupted those plans and led to the rise of Mr. Jiang, who at the time was party boss of Shanghai.
A Yemeni colonel who spoke to media justified the attack by saying the protest disrupted the activities of the UNHCR office staff and "made chaos".
The protests closed or disrupted a majority of France's universities for weeks, labor unions declared solidarity and eventually the government was forced to withdraw the law.
The protest, the landlord said, was disrupting the other businesses in the mall, which is dominated by the signs and sounds of Vietnam, from food to videos to travel agencies.
Political and student strikes and protests routinely disrupted the lives of Dhaka's people.
State officials said that the protest might disrupt some office services but that its overall impact would be small.