Jackie Northam

He just told the protesters to keep going, take over their institutions, and to save the names of, quote, killers and abusers, and that they will pay a big price.

Trump added that he has canceled all meetings with Iranian officials until the killing stops.

Before Trump's comments, we had been hearing that there was an effort using intermediaries to find a diplomatic solution to this increasingly heated rhetoric and threats between the U.S.

and Iran over these protests, but it seems that that's now broken down.

President Trump said the U.S.

might have to act before any meeting with Tehran because of, quote, what's happening in Iran.

Thousands of protesters poured into the streets in all corners of the country.

Videos of large crowds, burning buildings, and dead bodies in the street and morgues were posted on social media despite an ongoing Internet and cell phone blackout.

Tehran has not publicly said anything about a meeting with the U.S.,

Earlier on Sunday, a senior member of Iran's parliament warned that U.S.

bases and ships in the region would be legitimate targets for preemptive strikes if it looked as though the U.S.

would attack.

But Iran's military capabilities were badly weakened during the 12-day war with Israel last June.

Jackie Northam, NPR News.

President Trump said the U.S.

might have to act before any meeting with Tehran because of, quote, what's happening in Iran.

Thousands of protesters poured into the streets in all corners of the country.

Videos of large crowds, burning buildings, and dead bodies in the street and morgues were posted on social media despite an ongoing internet and cell phone blackout.

Tehran has not publicly said anything about a meeting with the U.S.,

Earlier on Sunday, a senior member of Iran's parliament warned that U.S.