One worker has been killed and two wounded in eastern Ukraine in heavy shelling of a plant belonging to the country's largest steel company.
In a statement on May 22, Metinvest said equipment and transport infrastructure were damaged in the shelling on May 21 of its Avdiyivka coke plant in the Donetsk region.
Metinvest said the plant was now unable to ship out finished products or receive supplies of raw materials.
"It was the heaviest shelling since the declaration of the cease-fire," Metinvest said.
The cease-fire between Ukrainian forces and Russian-backed rebels was declared in mid-February and has led to a drop in violence although violations are reported regularly.
On May 21, the Organization for Security and Cooperation in Europe (OSCE) -- which is monitoring the cease-fire -- warned of a "worrisome" spread of violence in eastern Ukraine.