Paramedics wheel an injured man to a hospital after a grenade attack on protesters at the Government House in Bangkok November 22, 2008. The grenade blast wounded 8 protesters occupying the Thai prime minister's office on Saturday, raising tension on the eve of a major anti-government rally, police and protest leaders said. REUTERS/Stringer (THAILAND).

Update: One of the injured has now died in hospital of his wounds.

Policemen inspect the scene of a grenade attack on protesters at the Government House in Bangkok November 22, 2008. The grenade blast wounded 8 protesters occupying the Thai prime minister's office on Saturday, raising tension on the eve of a major anti-government rally, police and protest leaders said. REUTERS/Stringer (THAILAND).

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Veteran tennis stars Bjorn Borg of Sweden, right, and John McEnroe of the United States, left, walk together after arriving at Suvarnabhumi international airport Friday, Nov. 21, 2008 in Bangkok, Thailand. The two tennis aces will play in an exhibition match in Bangkok on Saturday, Nov. 22, 2008. (AP Photo/Apichart Weerawong)

Thousands of Buddhist monks stand outside the Stock Exchange of Thailand during a rally in Bangkok on November 20, 2008. The monks are protesting against the proposed listing of Singapore-listed Thai Beverage PCL on the Thai bourse. (REUTERS/Sukree Sukplang)

Thai Buddhist monks take part in a protest against Thai Beverage's plan to list on the Thai bourse outside the Stock Exchange of Thailand (SET) building Thursday, Nov. 20, 2008, in Bangkok, Thailand. Hundreds of Buddhist monks and civilians staged a noisy protest opposing the listing plan and claiming that it would encourage Thais to drink alcohol and was counter to the beliefs of the kingdom's Buddhist majority. (AP Photo/Apichart Weerawong)

Piyachar (L), the wife of Janekit Kratsakhon, her son Sirachat (C) and her daughter Lipikar cry in front of the coffin of Janekit Kratsakhon who died after a grenade attack on protesters outside the metropolitan police headquarters in Bangkok November 20, 2008. The leader of a long-running anti-government street movement in Thailand called for a major rally on Sunday to oust the "murderous" administration after one of its supporters was killed in a grenade attack. (REUTERS/Chaiwat Subprasom)

An injured anti-government protester is treated by medic officials after the blast at their protesting ground of government house in Bangkok, Thailand Thursday, Nov. 20, 2008. A grenade attack on anti-government protesters occupying the Thai prime minister's office killed one person and wounded at least 23 early Thursday, an army official and protesters said. (AP Photo)

Security staffs of the anti-government protesters examine the site where a bomb exploded at their protesting ground of government house in Bangkok, Thailand Thursday, Nov. 20, 2008. (AP Photo/Apichart Weerawong)

Ousted Thai Prime Minister Thaksin Shinawatra, left, is received by Sheik Nahyan bin Mubarak Al Nahyan, UAE minister for Higher Education and Scientific Research, in his palace in Abu Dhani, United Arab Emirates, Tuesday Nov. 18, 2008. Thaksin's whereabouts and his plans to settle down outside Thailand have lately been sources of intense speculation. Thaksin faces two years in jail after a Thai court found him guilty of conflict of interest in a land deal. Thailand's Consul-General in the Emirates Pasan Therapak said Thaksin had only come to visit the Emirates and did not have plans to stay more than a few days, a government-owned newspaper said in a photo caption on Wednesday. (AP Photo)

Ousted Thai Prime Minister Thaksin Shinawatra, centre, arrives at the palace of Sheik Nahyan bin Mubarak Al Nahyan, UAE minister for Higher Education and Scientific Research, in Abu Dhabi, United Arab Emirates, Tuesday Nov. 18, 2008. (AP Photo)

Factory worker is making Buddha images in Phitsanulok (Photos by Richard Daniels)

This handout picture released by Thailand's Royal Bureau shows Thai King Bhumibol Adulayadej lighting candles during the enshrinement of the Royal Relics ceremony on the fifth day of the six-day funeral for the late Thai Princess Galyani Vadhana at the Dusit Maha Prasat Throne Hall in Bangkok on November 18, 2008. Princess Galyani the only sister of King Bhumibol Adulyadej died on January 2, 2008 from a cancer at the age of 84.

This handout picture released by Thailand's Royal Bureau shows Thai royal officials transferring the royal urn containing the relics on a palanquin (bottom) before their enshrinement at the Chakri Maha Prasat Throne Hall.

This handout picture released by Thailand's Royal Bureau shows Thai royal officials transferring the royal urn containing the relics before their enshrinement at the Chakri Maha Prasat Throne Hall.

Bangkok and neighbouring provinces are at risk of being swamped as sea levels rise, according to warnings at the recent Intergovernmental Panel on Climate Change meeting. The capital rests about 3½ to 5 feet above the nearby gulf, although some areas already lie below sea level. The gulf's waters have been rising by about a tenth of an inch a year. But the city, built on clay rather than bedrock, has also been sinking at a far faster pace of up to 4 inches annually as its population and factories pump some 2.5 million cubic tons of water out of its aquifers. This compacts the layers of clay and causes the land to sink. The capital could be under the sea as early as 15-20 years. These pictures were taken at Samut Prakan this morning as high tide flooded the city center. There has been no rain for the last several weeks. (Richard Barrow/ThaiPhotoBlogs.com)

Click to see more pictures of High Tide Flood in Samut Prakan.