European monarchs and world leaders paid tribute to Norway's King Harald on Friday, after the royal palace announced his death at the age of 89.

Harald was the continent's oldest reigning monarch. His son Haakon automatically succeeded him to the throne.

Here are some of the main tributes from across the continent and further afield.

Danish and Swedish monarchs

The kings of Denmark and Sweden called Harald an "extraordinary" leader and good friend who unified his country.