1. Takeover deal in India

Russia's biggest oil company, Rosneft, has announced a massive $12.9 billion all-cash deal for India's Essar Oil.

Rosneft is taking a 49% stake in the refiner. Other partners in the deal, including Dutch commodity trading firm Trafigura, are taking another 49% ownership in the business.

The deal still has to receive necessary regulatory approvals before it can close.

2. Gambling troubles

One of Australia's top casino operators is in trouble in China -- and its stock is getting hammered.

Shares in Crown Resorts plunged nearly 14% in Sydney on Monday after the company said Chinese authorities detained 18 of its employees, including a senior executive for high-rolling gamblers.

Crown said it was urgently trying to make contact with the employees. The company added that it doesn't have details on why its staff were held.

3. Tesla delays mystery announcement

Chinese consumer prices rose 1.9% year on year in September, the strongest increase in five years. Inflation is up thanks to a weaker yuan and higher prices of commodities, including oil. Producer prices also grew in September, the first increase in almost five years.

The positive reading eased concerns about China's economy after disappointing export data Thursday.

4. Stocks slumping

Most stock markets around the world are sinking on Monday.

U.S. stock futures are dipping while most European markets are inching down in early trading. The majority of Asian markets ended the day with losses.

This comes after Wall Street sustained significant losses last week. The Dow Jones industrial average declined by 0.6% over the course of the week, while the S&P 500 dropped 1% and the Nasdaq fell by 1.5%.