Chilling firsthand footage out of Tehran and obtained exclusively by the Daily Mail reveals the tense reality inside Iran today as the Islamic Republic holds a massive funeral.

TEHRAN: Tens of thousands of Iranians thronged a vast outdoor prayer complex in Tehran on Saturday to view the coffins of Ayatollah Ali Khamenei, the supreme leader killed at the…

Even larger crowds are expected Monday, when Khamenei’s casket will be taken on a procession through the streets of Tehran.