US officials are investigating the safety of caffeine in snacks and energy drinks. Is society too dependent on the world's favourite drug?

More children may drown without better school swimming provision, the Amateur Swimming Association (ASA) has warned.

Micro-blogging site Twitter says it is bringing in a two-step login for users to beef up security following recent high-profile breaches.

A new documentary film looks at the dramatic impact of China's growing fascination with fine French wines.

Europe's tax chief on how to squeeze the corporate Apples

Is it possible to kick-start science?

UK security chiefs had feared an attack, writes Dominic Casciani

A man is killed in a machete attack and two suspects shot and wounded by police in London, with footage emerging of a man with bloodied hands shouting political statements near the scene.

A man is killed in a machete attack and two suspects shot and wounded by police in London, with footage emerging of a man with bloodied hands shouting political statements near the scene.

The mayor of the tornado-devastated town of Moore in Oklahoma has vowed to push for a new law on shelters, after a huge twister there killed at least 24.

The connoisseur of the weird and strange long before reality TV

Ripley's oddballs and oddities prepared the world for reality TV

US Secretary of State John Kerry says Lebanon's Hezbollah and Iran are perpetuating President Bashar al-Assad's "campaign of terror" in Syria.

A Florida man was shot and killed as he became violent under questioning by Boston bombing investigators, FBI officials say.

A Florida man was shot and killed as he became violent under questioning by Boston bombing investigators, FBI officials say.

More than one million Montreal residents must boil drinking and cooking water after a mishap at a water treatment plant, officials warn.

More than one million Montreal residents must boil drinking and cooking water after a mishap at a water treatment plant, officials warn.

American writer Lydia Davis is named as winner of the Man Booker International prize for her "achievement in fiction on the world stage".

Hewlett-Packard shares leap in after-hours trading, despite quarterly results showing a seventh consecutive fall in sales.

Hewlett-Packard shares leap in after-hours trading, despite quarterly results showing a seventh consecutive fall in sales.