Trump threatens Iran as more protest deaths reported

President Donald Trump warned Iran on Sunday that it would get "hit very hard" by the United States if more protesters die during demonstrations that have entered a second week.

"We're watching it very closely. If they start killing people like they have in the past, I think they're going to get hit very hard by the United States," Trump told reporters aboard Air Force One.

Sparked by a cost-of-living crisis, the protests began with a shopkeeper's strike in Tehran on December 28.