The UK's £3 billion aircraft carrier has appeared at the mouth of Portsmouth Harbour as the Royal Navy's newest and biggest ship arrives at its home port for the first time.

Crowds have lined the seafront to welcome HMS Queen Elizabeth into Portsmouth Naval Base, where the future flagship will be based for its estimated 50-year lifespan.

The 919ft (280m), 65-000 tonne vessel has been undergoing training and tests at sea after setting out from Scotland's Rosyth dockyard in June.