Charlotte, Sept. 17 -- US President Donald Trump on Wednesday (local time) warned that EU could face "very heavy tariffs" if he considers its actions to be a "hostile act," as Canada seeks to reduce its economic dependence on the United States and strengthen ties with the European Union amid escalating trade tensions.

Speaking to reporters upon his arrival in Charlotte, Trump said, "Canada's into a terrible trade practice. And now, I will say this: if they do that, if I think it's a hostile act, I will put very serious tariffs, or stop trading with Europe on many things."

"And so, if they do that, if Europe does that with a bad intention--because if it's a good intention, that's fine. If it's a bad intention, we'll put very heavy tariff...