The teaser pays tribute to Steven Spielberg's "Jurassic Park" film by using a version of John Williams' original theme song.

Johnny Depp is returning to play Sparrow, the charismatic and rum-soaked pirate running from one adventure after another on the high seas.

It was Hardy's first classic English pastoral novel which was published 140 years ago on November 23, 1874.

Researchers say the sophistication of the software indicates that it is a cyber-espionage tool developed by a nation state.

"Apple is a proud supporter of (RED) because we believe the gift of life is the most important gift anyone can give," Cook said.

Hogan-Howe said the threat from so-called "lone wolf" attacks by individuals or small groups was causing "growing concern".

Casualties were high because the crowd was so dense, since people had come from nearby districts to cheer on their team.

Significant differences reportedly remain over the scope of Iran's uranium enrichment program and the timing of sanctions relief.