Iran protests enter ninth day as Trump renews intervention threat

A wave of protests sparked by Iran's failing economy has continued for a ninth day, as President Donald Trump renewed his threat of US intervention.

Videos published online on Monday showed demonstrations in the capital, Tehran, and the south-western city of Yasuj.

Human rights activists have said protests have taken place in 26 of the country's 31 provinces since last week, and that at least 19 protesters and one member of the security forces have been killed.

Trump warned on Sunday night that Iranian authorities would be "hit very hard" if more protesters died.