Li Ka-shing in talks to buy O2 for £10bn

Asia's richest person Li Ka-shing is in talks to buy Britain's second-largest mobile provider O2 for up to £10.25bn ($15.4bn) from Spain's Telefonica.

His firm, Hong Kong-based Hutchison Whampoa, already owns the Three mobile network, and combining it with O2 would create the UK's biggest mobile group.

But what would it mean for competition and consumers?

Emma Simpson reports.