The Washington Post reports:

One Ukrainian soldier was killed and an officer wounded in an incident at a base near Simferopol.

Though details are sketchy, the incident Tuesday afternoon began when unidentified assailants “stormed” the base, said Vladislav Seleznyov, a spokesman for the Ukrainian military. He said guns were fired into the air, and it is unclear whether the two victims were struck by stray bullets or if they were fired at directly….

Citing the storming of the base in Crimea, Ukrainian Prime Minister Arseniy Yatsenyuk said that the conflict with Russia had moved from a “political to a military phase.”