**Left-wing trade unions are protesting across Greece against spending cuts aimed at restoring international confidence in the country’s economy.**One communist-backed union asked civil servants, teachers, doctors and port workers to enforce a 24-hour strike.
The union, PAME, said its members would not pay for the consequences of the capitalist crisis.
Meanwhile a second credit agency questioned whether Greece’s austerity measures went far enough.
The agency Standard and Poor’s (S&P) followed Fitch in downgrading the country’s credit rating - meaning it thought Greece was now a riskier place to invest.
ANALYSIS
**By Malcolm Brabant
BBC News, Athens
**Earlier this week Mr Papandreou told me that everyone had to shoulder some of the pain of restoring confidence in the Greek economy. He believes he has the ability to turn Greece around.
But he is caught between the jaws of ruthless investors abroad, and the political ambitions of minority parties at home, which, having been defeated at the polls two months ago, now see an opportunity to flex their muscles.
S&P warned that the government’s measures were unlikely to lead to a sustainable reduction in the public debt burden, and said Greece’s credit worthiness may slide still further.
The measures announced by PM George Papandreou this week included a 10% cut in social security spending, cuts in defence spending, pay and hiring freezes for public sector workers, as well as the closure of a third of Greece’s overseas tourism offices.
Thousands of people were expected to join Thursday’s strike-action, and dozens of demonstrations were scheduled in Athens and towns across the country.
But while the challenge to the two-month-old Socialist government had the backing of journalist’s unions, the strikes were not expected to disrupt transportation links as the main Socialist-led transport unions did not back the protests.
Unity at risk
Greece has come under increasing pressure to take action over its deficit from the European Central Bank. The country’s public debt stands at 300bn euros ($442bn; £269bn).
Mr Papandreou says his plan will help reduce Greece’s public deficit from the current 12% to less than 3% by 2013.
Announcing his measures to target “systemic corruption” and “red tape”, Mr Papandreou said all members of society would have to pull their weight if Greece was to avoid “sinking under all its debts”.
Although Mr Papandreou has a big enough parliamentary majority to force through such cuts, he has held talks with opposition leaders in an attempt to forge a cross-party political consensus.
But such groups as the Communists have already made it clear they do not think the financial crisis is a matter that requires national unity.