A lot of hard work remains for the team to interpret and validate the TSIS-1 data.

The most recent round of talks aimed at reunifying the island. divided since a Turkish invasion in 1974. collapsed in June last year.

Chechnya fought two wars against Russia after the 1991 Soviet collapse.

Gazprom employs around 2.000 people at its overseas trading and export divisions. including some 1.000 staff in London.

For years. Republicans and energy industry experts have worried Russian money was being used to undermine U.S. energy policy.

The United States is on track to become the world'.s biggest oil producer and it has big plans for the future.

The pipeline would carry 55 billion cubic feet of gas a year from Russia to Europe.

The Trump administration issued a series of punitive sanctions against Russia for coordinating a cyberattack on the U.S. energy grid.

It'.s unclear how Russia'.s cyber attacks affected the sectors it was targeting.

Not all gas producers but only net exporters of natural gas had the right to become members of the organization.