Heavy security
Security officers quickly grabbed the three members of Reporters Sans Frontieres, a media freedom group, and dragged them away.
Greek police had imposed heavy security around the site, which included armed police watching from nearby hills.
The Greek government condemned the disruption of the ceremony saying it was "not at all in keeping with the spirit of the Olympics".
Later, about 10 Tibetan activists, covered in red paint to simulate blood, marched in the town's main street, shouting slogans against Chinese rule in Tibet.
China has been widely criticised for its deadly crackdown on protesters in Tibet in the past two weeks, a region it has occupied and ruled since 1950.
The protests continued in Tibetan areas on Monday.
China's state-run news agency Xinhua said that a police officer was killed during a protest in Garze Tibetan Autonomous Prefecture, which is administratively part of Sichuan Province.
Xinhua said that a group carrying knives attacked the armed police officers.
The Tibet Support Group, a human rights group, said a source in Garze had told them a monk and a farmer were also killed in the unrest.
In Nepal, at least two protests were broken up by security forces and about 475 people arrested, the UN human rights office in the the country said.
Torch relay
The torch relay began its journey to Beijing with Alexandros Nikolaidis, a Greek taekwondo athlete, who received the sacred flame from an actress representing an ancient Greek high priestess in the ancient stadium of Olympia.
The torch relay will travel 137,000km over 130 days through five continents before reaching Beijing's Olympic stadium for the opening ceremony.
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Dorjee said carrying China's 'bloodstained' torch through Tibet would be an insult [AFP] |
Earlier, Tibetan exiles had urged the IOC to cancel the torch relay through the troubled region.
Tenzin Dorjee, the deputy director of Students for a Free Tibet, said on Sunday in Olympia: "If the IOC has any respect in itself, the first thing it needs to do is drop the Tibet part of the relay.
"Carrying China's bloodstained torch through Tibet where we are seeing evidence of discontent would be adding insult to 50 years of injury."