BEIJING, China (AP) -- The Olympic torch has been re-lit at an elaborate ceremony in Beijing that included President Hu Jintao, signaling the start of a round-the-world torch relay.

Hu's participation shows the importance China place on the Olympics, which start August 8, to show a confident, strong China to the world.

The ceremony on Monday 130 days before the start of the Olympics was broadcast on state television, and comes a week after the lighting ceremony for the Olympic torch in Greece was marred by protests.

Hein Verbruggen, who heads the International Olympic Committee's commission monitoring the organization of the Beijing Olympics, was also at the ceremony.

Concern about anti-government protests extended to the state television broadcast. Although the broadcast signal carried a banner saying it was "live," there appeared to be a delay of about 1 minute.

The torch arrival in Beijing allows the government a brief respite before the relay sets off on a problematic, month-long world tour.

The torch relay has been heavily promoted by the Chinese government. The chartered Air China plane was greeted at the Beijing airport by hundreds of schoolchildren waving Chinese and Olympics flags.

Chief Beijing organizer Liu Qi carried the flame off the plane. Showing how important the Olympics are to China's communist leaders, he was greeted by Zhou Yongkang. A former public security minister, Zhou is a member of the Communist Party's supreme nine-man Politburo Standing Committee.

There has been a noticeable boost in security in downtown Beijing. One subway station at Tiananmen Square was closed and dozens of police were at other subway stops. Police also closed the square to vehicles.

After a one-day stop in Beijing the flame goes Tuesday to Almaty, Kazakhstan, the start of the 20-country, 137,000-kilometer (85,100-mile) global journey.

The grandiose relay is the longest in Olympic history and has the most torchbearers -- a sign of the vast attention lavished on the Games by Beijing, which hopes to use it to showcase China's rising economic and political power.

Instead, however, it has provided a stage for human rights activists who have been criticizing China over a range of issues including its handling of Muslims in the far west of the country, its control over Tibet and its relationship with Sudan.

Tibetan and rights groups have said they will stage protests along the torch route. That includes stops in London, Paris and San Francisco over the next 10 days.

The relay has especially focused attention on recent unrest in Tibet, the worst in the Chinese-controlled region since 1989.

Dozens of Tibetan exiles burned an effigy of Hu as they reached the Indian capital of New Delhi on Sunday, carrying a symbolic flame which they said was running parallel to the official torch for the Beijing Olympic games.

Beijing's relay was tarnished before it even began when a demonstrator protesting Chinese media curbs grabbed headlines last week by disrupting a Chinese official's opening address at the lighting ceremony in Greece.

That was followed across Greece by a smattering of protests by activists protesting a crackdown on dissent in Tibet and members of the Falun Gong spiritual movement, which is banned in China.