Why are Iran's protests intensifying

Protests intensified in Iran on Wednesday night, six weeks on from the death of Mahsa Amini.

Unrest has rocked the country since the 22-year-old died in police custody after allegedly wearing her Islamic headscarf "improperly".

Human rights group Nationwide estimates that more than 13,000 people have been arrested and that at least 250 have been killed in the demonstrations.