Christchurch earthquake: Memorial held for victims 10 years on

New Zealand's Prime Minister Jacinda Ardern has attended a service held in tribute to the 185 people who died when a 6.3 magnitude earthquake hit Christchurch ten years ago.

The earthquake flattened buildings and destroyed homes in the city on New Zealand's South Island. It caused a huge amount of damage as the epicentre was just 5 km below the city.