Russian ship "Port Olya 4" loaded with drone parts and ammunition from Iran could have been hit, Ukraine's military said.

Days before the leaders of Russia and the U.S. hold a summit meeting in Alaska, Moscow’s forces breached Ukrainian lines in a series of infiltrations this week in the country’s industrial heartland of Donetsk.

Ukraine's President Volodymyr Zelenskiy said on Friday Russia continued attacking Ukraine ahead of a summit between Donald Trump and Vladimir Putin, but its attempt to demonstrate power by launching a new assault in the east failed.