Donald Trump stopped talking about his views on free trade Thursday to surmise that a random plane flying overhead at his campaign rally was Mexico “getting ready to attack.”

Trump, speaking at a rally in New Hampshire, pivoted his discussion to talking about Mexico and trading with the country.

“Mexico, and I respect Mexico, I respect their leaders, what they’ve done to us is incredible. Their leaders are so much smarter, so much sharper. And it’s incredible,” Trump said.

Then, a plane could be heard flying overhead.

“In fact, that could be a Mexican plane up there — they’re getting ready to attack,” he said.

Watch the exchange: