KYIV, Dec 10 – President Petro Poroshenko has proposed that Russian vessels should be blocked for entering the European or American ports over blocking navigation in the Kerch Strait and the Sea of Azov.

"And now the United States because we should have a reaction with that situation. Russian vessels should be blocked for entering the European or American ports," he said in an interview with Fox News, the press service of the head of state reported on Saturday.