The state department says the number of revocations "remains dynamic" and would be carried out on a rolling basis.

Emmanuel Nchimbi is the first vice-president to quit since independence six decades ago.

After last year's massive power failure, Spanish and Portuguese firms are buying battery back-ups.

The fear of hacking has made some people turn to other forms of technology ignored by new generations of cyber criminals.

Celtic manager Martin O'Neill says his team have a "million miles to go" after defeat in Austria.

Research suggests that naturism, the practice of non-sexual social nudity, can help people improve their body image. Naturists and experts tell the BBC how it works.

Two planned concerts are thrown into doubt, but Russian promoters insist they will go ahead.

A series of scenic paths trace the Norwegian-Russian border. But as you trek through the tundra and forests, you may notice watchtowers and cameras hanging in trees.

From Māori symbolism to the "warm hug" tattoo – here are nine works by a new generation of body artists.

Water scarcity and climate change is driving communities to restore traditional water structures built centuries ago, bringing them back into use in the 21st Century.

Dara Ó Briain meets winemakers in Sicily who explain how Mount Etna makes their grapes one of a kind.

From Tokyo egg sandwiches to Greek dairy aisles, supermarket aisles are becoming one of travel's most revealing and beloved experiences.