MYKOLAIV/NEAR KUPIANSK, Ukraine—Russia jolted world grain markets with an escalation in the Black Sea, mounting a third straight night of air strikes on Ukrainian ports and issuing a threat against Ukraine-bound vessels to which Kyiv responded in kind. At least 27 people were reported hurt in the air strikes on the ports, which set buildings…

KYIV—Russia launched an extensive air attack on the Ukrainian city of Odesa for a second night in row on Wednesday. The attack was “very powerful, truly massive,” Serhiy Bratchuk, spokesperson for the Odesa military administration, said in a voice message on his Telegram channel on Wednesday. “It was a hellish night,” he said, adding that…

Russian air defenses on Tuesday foiled a Ukrainian drone attack on Moscow that prompted authorities to briefly close one of the city’s international airports, officials said, as a Western analysis said that Russia has managed to slow Kyiv’s recently launched counteroffensive. The drone attack, which follows previous similar raids on the Russian capital, was the…