Iran's novel coronavirus death toll has surpassed 20,000, the government said, six months after announcing the start of what quickly became the Middle East's deadliest outbreak, AFP reported.

Health ministry spokeswoman Sima Sadat Lari described the situation as “concerning” in 26 of Iran's 31 provinces, among them Tehran.

She also stressed health protocols should be observed during Muharram. “In no case should Muharram ceremonies be held in closed spaces,” she said.