Bangkok ( CNN ) -- Though on the surface it seems like another typical day in central Bangkok -- hot , muggy and busy , with traffic snarls around town -- tension is rising as protesters continue to exert pressure on the Thai prime minister to step down . Thousands of demonstrators were expected to march on key ministerial buildings on Wednesday to demand an end to the government of Yingluck Shinawatra , ahead of a no-confidence vote in parliament on Thursday . The escalating political tension has prompted travel updates from 23 foreign governments , according to the Thai Foreign Ministry . Among the countries warning their citizens to be vigilant are the UK , the U.S. , Canada , Australia , Germany , Sweden and Singapore . Locals and tourists appear unconcerned . For those not plugged into official information sources , there are few signs of what 's being broadcast around the world -- images of government ministries under siege , rallies filled with thousands of cheering anti-government protesters and video of Yingluck explaining to the nation why she 's implementing the Internal Security Act ( ISA ) . The ISA gives law enforcement officials and the military additional powers , including the right to impose curfews , put up checkpoints , restrict the movement of demonstrators and search for weapons . Away from the affected sites it 's pretty much life as normal in most parts of wider Bangkok . But while it 's easy to avoid protests , as of Wednesday morning the situation had become extremely fluid and increasingly worrisome to some observers . While the number of demonstrators , led by the Democrat Party , has declined from the 100,000 reported on Sunday , protesters claim tens of thousands of people are still on the streets . Authorities say the figure is closer to 10,000 . On Wednesday , they 'll split into two or more groups , according to Akanat Promphan , a spokesman for the protesters . He told CNN they plan to march to a number of government buildings , including the ministries for Public Health , Social Development , Labor , and Science and Technology . Another group is heading to a complex outside the city which houses a number of government offices . A primary target in this location is the Department of Special Investigation . A city accustomed to protests . The capital 's residents have become accustomed to political uprisings , hence the business-as-usual attitude among locals . Thailand was wracked with turbulence for four years after a 2006 coup , culminating in a 2010 army crackdown on supporters of ousted Prime Minister Thaksin Shinawatra , the older brother of the current prime minister . More than 90 people were killed in the violence . Foreign government have warned their citizens to be vigilant , despite assurances from the Thai government that authorities will `` absolutely not use violence '' to disperse the demonstrators . On its website , the British Foreign & Commonwealth Office said , `` A number of political demonstrations have taken place in various locations in Bangkok and elsewhere in Thailand since the start of November 2013 . '' `` Further large scale protests are taking place with little warning , at various locations in Bangkok . The main ongoing protest area situated along Rachadamnoen Avenue including Democracy Monument in Bangkok has now expanded to include protests at a number of government buildings in central Bangkok . '' In its security message to citizens , the United States Embassy in Bangkok said . `` Even demonstrations that are meant to be peaceful can turn confrontational and escalate into violence . '' Russian foreign ministry tells citizens to avoid Bangkok . Though most government warnings advised citizens to avoid protest areas , Russian media reports say their Foreign Ministry advises tourists to avoid the capital completely . `` The possibility of further escalation of the unrest should not be ruled out , '' the ministry said in a statement quoted by news agency RIA . `` In this respect , we recommend that Russians avoid visiting Bangkok . Those already there should take due care , comply with law enforcement officers ' demands and avoid crowded areas . '' Protests , what protests ? Security concerns notwithstanding , some tourists who spoke with CNN did n't even realize protests were taking place in Bangkok . Others said they were aware of the situation , but were n't concerned . British traveler Charles Rowson , 43 , who is on a 10-day vacation with his family , said he was keeping an eye on developments . `` I have been reading the local papers to keep up on the political situation and our hotel briefs us daily on the areas to avoid , '' he said , while waiting for his hotel 's courtesy ferry to pick him up from the Saphan Taksin pier . Tourism is a concern for the nation 's travel industry right now , as Thailand enters its high season . According to the World Travel and Tourism Council , the tourism and travel sector contributed $ 27.99 billion , or 7.3 % , to Thailand 's GDP in 2012 . A report on state-run website MCOT cites a senior Bangkok Metropolitan Administration official as saying tourism revenue may fall 10 % lower than projected if the political demonstrations continue . CNN 's Jethro Mullen and Kocha Olarn contributed to this report .
Despite anti-government protests , Bangkok residents remain calm , unconcerned . More than 20 nations issue warnings for citizens to avoid political gatherings . Score: 6