Russia has warned that all ships traveling to Ukraine are considered to be potentially carrying weapons.

Wheat prices are soaring once again as Russia says that it will not renew a UN-brokered deal to help stabilize global wheat prices.

Russia says it sees "no ground" to renew its grain deal with Ukraine, less than two weeks before the expiration of the agreement.

Russia has warned the United States and Britain against sending warships to the Black Sea.

Russia has warned that it would terminate a UN-brokered grain deal if the Group of Seven (G7) countries moved to ban exports to the country.

"The US is completely unashamed by the depth and audacity of the evil plans it is revealed to have organized," writes Daniel Patrick Welch.

Hawkish Republican Senator Marco Rubio says the United States should begin flying more military drones with fighter jet escorts over the Black Sea region, following the crash of an American drone there.    

Turkey’s Erdogan says natural gas reserves of the country in Black Sea have increased in volume.

Russia says it thwarted a plot by Ukrainian intelligence agencies to carry out sabotage and terrorism on the South Stream gas pipeline that supplies Russia’s natural gas to the European continent.

Russia has announced that it will rejoin the UN-administered grain export corridor from Ukraine via the Black Sea, reserving its right, however, to withdraw from the international agreement.