India's markets regulator has widened its probe into alleged market manipulation by U.S. securities trading firm Jane Street to include other exchanges and indices, according to a source, after barring it from trading in the Indian markets earlier on Friday.

India has barred Jane Street from the country’s financial markets and said it would seize around $570 million that the U.S. securities firm made from allegedly fraudulent trades.

The Securities and Exchange Board of India (SEBI) has flagged global proprietary trading firm Jane Street for allegedly manipulating Indian stock markets in an “unusual” way.