Reaction: China's $20B injection boosts Europe markets

Squawk Box Live kept an eye on investor reaction after China's central bank attempted to buoy markets with a $20 billion cash injection on Tuesday.

It comes a day after Chinese stocks were halted for trade following a 7 percent slide in the CSI300 index. The rout resulted in trade being suspended for the day, triggering a global sell-off that left U.S. stocks with the worst start-of-year session since the financial crisis.

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