Tesla (TSLA) - Get Report CEO Elon Musk took to his Twitter (TWTR) - Get Report account Thursday morning to announce his company has received verbal government approval to build an underground Hyeperloop. 

A Hyperloop is a super-speed rail line placed either above or below ground and could ultimately help transport goods and people nearly as fast as 700 miles an hour.

The Tesla CEO went on to explain what a potential platform for these high-speed rail lines could look like. 

Tesla shares were up 0.6% to $327.34 early Thursday afternoon.

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