Thousands of protesters waving Tibetan flags and shouting "Shame on China" tried to disrupt the torch's run through London on Sunday, the British leg of the international relay billed by Beijing as the "harmonious journey".
The Olympic flame is expected to remain a magnet for anti-Chinese protests ahead of the August Games in Beijing.
The flame is due to return to Beijing on August 6, two days before it will be used to light the cauldron at the Olympic opening ceremony.