At least four Ukrainian servicemen and five coal miners were on Friday reported killed in the latest violence in the east of the country, where government forces are fighting pro-Russian separatists.
The miners were killed after the bus they were travelling in came under mortar fire, Ukrainian television reported a doctor as saying, in the region of Chervonopartizansk near the border with Russia.
Two soldiers and at least one border guard were killed after their armoured vehicle drove over a landmine near Dovzhansky on Ukraine's border with Russia.
Military spokesman Vladyslav Seleznyov said a soldier was also killed in an incident near the town of Karlovka in the region of Donetsk, the main city where rebel fighters are holding out against the government forces.
He said at least 50 separatist fighters had been killed in the last few days following air strikes against rebel positions near the border with Russia.
There was no immediate comment from the rebels.