Protests in Bangkok, Thailand

Supporters of former Prime Minister Thaksin Shinawatra, who is in exile after being toppled in a military putsch, confront riot police during the protest outside Government House in Bangkok.  (Chumsak Kanoknan / Getty Images)

Supporters of exiled former Prime Minister Thaksin Shinawatra, who faces charges of corruption and abuse of power, gather outside Government House during their protest. Their demonstration resembles an extended one last year at the same site that forced the resignation of a prime minister seen by opponents as a Thaksin stand-in.  (Chumsak Kanoknan / Getty Images)

Thai riot police climb on a truck as anti-government protesters in Bangkok attempt to topple a fence.  (Chumsak Kanoknan / Getty Images)

Anti-government demonstrators confront riot police during the protest outside Government House in Bangkok.  (Chumsak Kanoknan / Getty Images)

Supporters of former Prime Minister Thaksin Shinawatra, who is particularly popular in rural areas of Thailand, gather outside Government House during the protest.  (Chumsak Kanoknan / Getty Images)

Riot police gather as thousands of supporters of ousted Prime Minister Thaksin Shinawatra protest outside Thailand’s seat of government in Bangkok, reigniting the kingdom’s political turmoil just days ahead of a key regional summit. The protesters surrounded Government House and called on Prime Minister Abhisit Vejjajiva to dissolve his 2-month-old government and hold snap elections, saying they would stage a three-day sit-in to press their demands.  (Nicolas Asfouri / AFP/Getty Images)

An anti-government protester stands next to a placard during the demonstration outside the seat of government in Bangkok.  (Pornchai Kittiwongsakul / AFP/Getty Images)

Red-shirted anti-government protesters in Bangkok move a police van.  (Pornchai Kittiwongsakul / AFP/Getty Images)

Supporters of ousted and exiled Thai Prime Minister Thaksin Shinawatra protest outside the seat of government in Bangkok as riot police look on.  (Pornchai Kittiwongsakul / AFP/Getty Images)

A steamroller used by Thai authorities to block the entrance to Government House in Bangkok is driven away by anti-government demonstrators during the rally.  (Apichart Weerawong / Associated Press)