At least nine people, including four Ukrainian soldiers, have been reported killed in the east of the country, where government forces are fighting pro-Russian separatists.
Two soldiers and at least one border guard were killed after their armoured vehicle drove over a mine on Friday near Dovzhansky, on Ukraine’s border with Russia.
Vladyslav Seleznyov, a military spokesman, 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 attacks against rebel positions near the border with Russia.
The dead also included five coal miners who were killed on Friday 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.
There was no immediate comment from the rebels.
The shelling of the bus forced energy and coal processing company DTEK, which employed the miners, to suspend operations at four mines in the economically depressed industrial province of Luhansk, Interfax news agency quoted the company’s general director as saying.
The government forces have gained the upper hand in the three-month-old conflict in the Russian-speaking eastern regions in which more than 200 government troops have been killed as well as hundreds of civilians and rebel fighters.
Meanwhile, Russia closed three major border crossings with Ukraine.
Russian news agencies on Friday quoted Vasily Malayev, a spokesman for the security services in the Rostov region, as saying that three crossings east of Donetsk were temporarily closed late Thursday night because of fighting on the other side.
Ukraine said it regained control of one crossing which had been controlled by rebels.
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