Thai army armoured vehicles seized by the 'Red Shirt' protesters after overnight clashes sit next to the Democracy Monument in central Bangkok on April 11, 2010. Demonstrators vowed to remain on the streets of the Thai capital and bring down the government, the day after the country's worst political violence in nearly two decades. Despite the clashes between the army and 'Red Shirt' protesters, which left 19 people dead and over 800 injured, the supporters of fugitive ex-premier Thaksin Shinawatra said they would continue to occupy key areas of Bangkok. (Getty Images)

Destroyed army vehicles are seen after clashes between anti-government protesters and Thai security forces in central Bangkok April 11, 2010. Thai "red shirt" protesters on Sunday ruled out negotiations with the government and said they would not give up their fight for early elections after clashes with security forces the previous day killed 20 people. (Reuters)