Pro-Russian separatist leader Igor Strelkov has resigned, the rebel group Donetsk Republic said on its website.
It said Vladimir Kononov would replace Strelkov as the new military commander.
Strelkov's resignation is the third change at top of the rebel leadership in the past week.
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This was despite more than a fifth experiencing delays of more than three hours, a Which? survey revealed.
Michael Haines said he wanted to continue his brother's legacy so he would be remembered for his good work rather than his death.
Tomorrow should be a bit quieter in most places, with lighter winds and some lovely winter sunshine.