Supporters of Thailand's ousted prime minister Thaksin Shinawatra rally outside the Governement House in Bangkok on April 8, 2009. More than 100,000 anti-government protesters rallied in Bangkok April 8 in their biggest bid yet to topple premier Abhisit Vejjajiva, deepening Thailand's political crisis ahead of a key Asian summit. (Getty Images)

Supporters of former Thai Prime Minister Thaksin paint his body during a rally outside the home of Prem, chief advisor to King Bhumibol, near the Government House in Bangkok April 8, 2009. (Reuters)

Anti-government protesters and supporters of exiled Prime Minister Thaksin Shinawatra take up the street near the home of King Bhumibol Adulyadej's top adviser, Prem Tinsulanonda, whom they accuse of masterminding the September 19, 2006 coup during a protest Wednesday, April 8, 2009 in Bangkok, Thailand. Prime Minister Abhisit Vejjajiva rejected calls for his resignation as tens of thousands of protesters marched Wednesday in Bangkok, posing the biggest challenge to his government amid fears of violence. (AP)