A giant new Chinese-built city has sprung up on the outskirts of Angola's capital Luanda.

Nova Cidade de Kilamba is a brand-new mixed residential development of 750 eight-storey apartment buildings, a dozen schools and more than 100 retail units.

Designed to house up to half a million people when complete, Kilamba has been built by the state-owned China International Trust and Investment Corporation (CITIC) in under three years at a reported cost of $3.5bn (£2.2bn).

But on a recent trip back to Luanda, the BBC's former Angola correspondent Louise Redvers discovered that most of the buildings currently lie empty, as this footage she recorded shows.