Millions of India's workers have vowed to go on strike on Wednesday against right-wing Prime Minister Narendra Modi's "anti-labor" economic policies.

Ten major unions have called the nationwide strike for 24 hours over the government's pro-business initiatives, after recent talks with Finance Minister Arun Jaitley broke down.

Further signs of slowing in the world's second-biggest economy sent shudders through global markets Tuesday, adding to the worldwide sense of crisis over China's financial management.

European stock markets plunged at the opening, taking their lead from Asia, where bourses lost ground after the worst figures in three years from Chinese factory managers.

German unemployment remained at historically low levels in August as the recovery in Europe's biggest economy continued on track, data showed on Tuesday.

The number of people registered as unemployed in Germany fell by a seasonally-adjusted 7,000 to 2.79 million, the lowest level since December 1991, the Federal Labor Office said.

When is a trillion euros not enough? Could be soon, in Europe's shaky economy.

Analysts are already talking about when and how the European Central Bank might extend its 1.1 trillion-euro ($1.2 trillion) stimulus program that has been running for the past six months in an attempt to boost the modest recovery in the 19 countries that use the euro.

Saudi stocks dived 17.2 percent in August to lead a slide in other Gulf bourses which came under pressure from a sharp decline in oil prices and China's economic woes.

Global equities were hammered last week as risk-averse investors dumped shares on spreading panic that the flagging Chinese economy -- the world's second largest -- could spark a new worldwide recession.

China's main state broadcaster on Monday paraded a financial journalist "confessing" to causing the stock market "great losses" as authorities seek to rein in a rout on the exchanges.

Wang Xiaolu, a journalist with the respected business magazine Caijing, was held after writing a story in July saying the securities regulator was studying plans for government funds to exit the market.

Italian energy giant Eni on Sunday announced the discovery of the "largest ever" offshore natural gas field in the Mediterranean, in Egypt's territorial waters.

The discovery, confirmed by Egypt's oil ministry, could hold a potential 30 trillion cubic feet (850 billion cubic meters) of gas in an area of about 100 square kilometers (40 square miles), Eni said in a statement.

Siemens, Daimler, Rheinmetall -- the cream of German industry -- have been mired in cases of alleged corruption in Greece, the country that Berlin has repeatedly admonished for the parlous state of its economy.

No date has been set yet for 19 former executives of German engineering group Siemens to appear in Greek court, but it is expected to be one of the biggest financial trials of the decade in Greece.

China's currency devaluation and slowing economy have caused enormous turmoil in world financial markets, but they have not really bothered tourists like Henry Lee.

Not yet, at least.

Chinese Premier Li Keqiang has issued assurances over his country's economy after global markets were roiled by concerns over its slowing growth, state media reported on Saturday.

Top global markets ended the week Friday largely recovered from China-induced panic selling, but market watchers remain worried the turmoil in the world's number two economy will drag down global growth.