Supporters of former Premier Thaksin Shinawatra gather on a highway in Bangkok March 13, 2010. Anti-government protesters headed for Bangkok from the countryside on Saturday for what they are calling a "million-man march," aiming to paralyse the capital and topple a government they say is a front for unelected elites. (Reuters)

Supporters of former Premier Thaksin Shinawatra gather on a highway in Bangkok March 13, 2010. Anti-government protesters headed for Bangkok from the countryside on Saturday for what they are calling a "million-man march," aiming to paralyse the capital and topple a government they say is a front for unelected elites. (Reuters)

Supporters of deposed Thai premier Thaksin Shinawatra take part in a rally at Victory Monument in Bangkok on March 12, 2010. Tens of thousands of supporters of Shinawatra began to mass in their trademark red shirts ahead of weekend protests in Bangkok aimed at toppling the government. (Getty Images)

Supporters of deposed Thai premier Thaksin Shinawatra wave clappers and flags during a rally in Bangkok on March 12, 2010. (Getty Images)

A Thai policeman stands guard outside Thai Prime Minister Abhisit Vejjajiva's house in Bangkok March 10, 2010. The Thai government has invoked a tough security law, the Internal Security Act, giving the armed forces broad powers to control an upcoming rally by supporters of former Prime Minister Thaksin Shinawatra if necessary.(Reuters)

A fisherman works on his fish farm on a partially dry reservoir on the Mekong River during a drought affecting the Thai-Lao border area of Wiang Kaen district, Chiang Rai province, north of Bangkok. Severe drought has hit Southeast Asian countries, parching the region's major river, Mekong, whose water level has dropped to only 33 centimeters, the lowest in 50 years. Apart from the drought, villagers who live along the Mekong, which flows 4,350 km (2,700 miles) from the glaciers of Tibet to the rice-rich delta of southern Vietnam, attributed the falls of water level to newly constructed dams in China. (Reuters)

A boy runs on a dried up reservoir on the Mekong River during a drought affecting the Thai-Lao border area of Wiang Kaen district, Chiang Rai province, north of Bangkok.

Thai policemen inspect identity cards at a checkpoint in outskirts of Bangkok. The Thai government has invoked a tough security law, the Internal Security Act, giving the armed forces broad powers to control an upcoming rally by supporters of former Prime Minister Thaksin Shinawatra if necessary. (Reuters)

A Thai policeman stands guard at a checkpoint on a highway on the outskirts of Bangkok March 9, 2010. (Reuters)

His Majesty the King receives a briefing yesterday on the situation in the country from the prime minister. Abhisit Vejjajiva was granted a private meeting with His Majesty on the 14th floor of the Chalermphrakiat building, Siriraj Hospital. (ROYAL HOUSEHOLD BUREAU)

Escorted and guarded by Thai commandoes, Maj. Gen Khattiya Sawasdipol (center), alias Seh Daeng, a supporter of ousted Prime Minister Thaksin Shinawatra, is brought to criminal court Monday, March 8, 2010, in Bangkok. Khattiya and seven associates were arrested on Saturday on charges of illegal possession of firearms. The Criminal Court on Monday granted bail to Maj-Gen Khattiya Sawasdipol and six of his aides after a lawyer placed 1.6 million baht as collateral. (AP)

Thai Muslim villagers look at birds in cages during in a bird-singing contest in Yala province, about 1,100 km (683 miles) south of Bangkok March 7, 2010. About 6,000 birds took part in the competition. (Reuters)

Thai Muslim villagers look at birds in cages during in a bird-singing contest in Yala province, about 1,100 km (683 miles) south of Bangkok March 7, 2010. About 6,000 birds took part in the competition. (Reuters)

KUALA LUMPUR, MALAYSIA - MARCH 06: Thongchai Jaidee of Thailand waits with his caddie on the 18th hole during the the third round of the Maybank Malaysian Open at the Kuala Lumpur Golf and Country Club on March 6, 2010 in Kuala Lumpur, Malaysia. (Getty Images)

KUALA LUMPUR, MALAYSIA - MARCH 04: Thaworn Wiratchant of Thailand plays his second shot on the 15th hole during the first round of the Maybank Malaysian Open at the Kuala Lumpur Golf and Country Club on March 4, 2010 in Kuala Lumpur, Malaysia. (Getty Images)