Ukraine's central bank said the average rate set at a daily dollar auction on Tuesday was 15.8817 hryvnia per $1, a fresh all-time low, as a fraying ceasefire in eastern regions weighs on the currency.

The rate on Monday was 15.2242 per dollar. The central bank abandoned an unofficial peg of 12.95 to the dollar a week ago, leaving the hryvnia in free-fall as tensions between government forces and rebels escalated.