The revelation is the latest to indicate that inadequate security measures played a significant role in the worst breach of classified data.

Public discontent over rising numbers of foreign workers has heated up, with thousands of migrants detained in police raids in Moscow.

The talks bring together world powers - the five permanent Security Council members plus Germany (P5+1) - and Iran.

"This is the third super typhoon (max sustained winds of at least 150 mph) in less than 3 weeks," said a hurricane specialist.

"We will target security forces, government installations, political leaders and police," said the head of the Taliban council.