British police made three arrests after Sri Lankan Tamil protesters attacked the Chinese embassy in central London, smashing windows.
Reports said the protest action took place on Wednesday when some 150 supporters of the banned Liberation Tigers of Tamil Eelam arrived at the embassy carrying LTTE flags.
Tamils are said to be angry at China's role in the current civil war in Sri Lanka, with one recent newspaper report saying China had emerged as the biggest aid donor and a major arms supplier to the Sri Lankan government.
Sri Lankan Tamil protesters in London have so far targeted the Indian High Commission in London for their protests and attacks, alleging that India was helping the Sri Lankan armed forces in its current war on the LTTE.
Both India and Sri Lanka deny the allegation.