Paraguay Police & Protesters Clash Amid Strike ASUNCION, June 22 (Reuters) - Paraguayan police arrested at least four demonstrators and 11 people were injured in clashes in the capital on the first day of a 48-hour general strike against the South American country's privatisation plans, police and unions said on Thursday. "There are six injured protesters who were brutally and unnecessarily beaten by riot police," said the head of the National Transport Workers Union, Persio Duarte. Unions are demanding that the government back down on plans to allow private investment in telephone company Antelco, water company Corposana and the country's only railway company. Police said four members of security forces were also injured in the clashes between police and groups of protesters who tried to block access roads into Asuncion, the usually sleepy capital of the subtropical nation of 5 million people. The streets of the main shopping and business districts in Asuncion and in the trading town of Ciudad del Este on the borders of Brazil and Argentina were almost deserted and most shops and offices were closed. Bus drivers also joined the strike. But a government spokesman said the country's two main airports were operating as normal and Secretary of the Presidency Jaime Bestard called the strike a failure. "The assistance level at public institutions is very high. We estimate that some 80 percent of (state) workers are at their posts and all services are functioning normally," Bestard said at a press conference. Interior Minister Walter Bower accused protesters of taking "an extreme attitude, attacking the police... and provoking a violent reaction in which it is difficult to control the use of force." Public Works Minister Jose Alberto Planas told reporters that "the rights of both protesters and those who wish to go to work are totally guaranteed by the security forces." Companies which operate Paraguay's private public transport system said at least 10 vehicles were damaged by protesters who threw rocks or set fire to the buses. The government posted about 10,000 police around the country and told public servants that they had special permission to arrive late to work. Public service unions have called an eight-day strike against the privatisation plans that began on Wednesday, although most government offices continued to function. Private sector unions called a 48-hour strike. "We are against this (privatization) plan because it is completely irrational and is aimed at nothing but covering up fraud and con tricks," said Corposana union chief Hugo Gonzalez. Since the 35-year dictatorship of Gen. Alfredo Stroessner ended in 1989,giving way to a corruption-riddled democracy run by Stroessner's Colorado Party, Paraguay has already sold off a handful of state enterprises. State airline LAPSA, the sugar refinery Canas Paraguayas, the merchant naval fleet operating on the Paraguay River and the steel company Aceros del Paraguay all went to private hands. Widespread political unrest, including the collapse of the coalition between President Luis Gonzalez Macchi's Colorados and their erstwhile Liberal Party allies, has helped delay Paraguay's privatisation plans. Paraguay's official gross domestic product of $10 billion is swollen by a huge black market economy fed by rampant smuggling.