A Ukrainian drone attack hit a Russian Black Sea port as diplomats prepare for fresh U.S.-brokered peace talks.

Ukraine and Russia are at odds over competing ceasefire proposals.

A dolphin rescue center in Russia says 32 dolphins have died since fuel oil spilled out of two storm-stricken tankers three weeks ago in the Kerch Strait near the Russia-occupied Crimean Peninsula.

Russia-appointed officials in Moscow-occupied Crimea have announced a regional emergency after oil was detected on the coast of Sevastopol.