BANGKOK, March 14 (Xinhuanet) -- Thailand's caretaker Deputy Prime Minister Chidchai Vanasatidya has ordered security forces to intensify their surveillance at the Government House through night to prevent any undesirable incident.

    "I've instructed the security officers to try the best in keeping peace and order through maximum surveillance with high alert at night to prevent any turbulence or unrest," he said late Tuesday when inspecting around the Government House.

    He gave the order as anti-Thaksin groups led by the People's Alliance for Democracy (PAD) continued rallying in front of the premise at night.

    Chidchai, who is also the justice minister and oversees national security, said that there would be no reinforcement at the Government House at the moment.

    He conceded that he was more worried about traffic problems, as the demonstrators might block the roads around the Government House.

    Tens of thousands of the PAD-led demonstrators marched from Sanam Luang (the Royal Square) to the Government House on Tuesday morning and vowed to stay days and nights in front of the premise until caretaker Prime Minister Thaksin Shinawatra agrees to step down.

    "The public will decide whether the demonstration with trailing traffic problems is suitable," said the deputy premier.

    Thaksin has faced mounting pressure to resign from both the PAD and the three former main opposition parties -- Democrat, Chart Thai and Mahachon -- over his family's 73.3 billion baht (1.9 billion U.S. dollars) tax-free sale of a controlling stake in ShinCorp. Enditem