On Saturday, March 31, US President Donald Trump "attacked" Amazon.com Inc. (AMZN) on Twitter, stating that the online retailer "must pay at real rates (and taxes)!"

According to the president, the US postal service loses an average of $ 1.5 on each parcel carried out for Amazon. This together gives a loss of "billions of dollars."

Trump also adds that fraud with the postal service should stop, and Amazon should "pay at real rates (and taxes) now!"

In addition, Donald Trump criticized The Washington Post, which belongs to the founder of Amazon Jeff Bezos, for lobbying the interests of the retailer.

Shares of AMZN in premarket declined to $ 1,423.00 (-1.68%).