KIEV, April 14 - Ukraine’s biggest privately-held power and coal mining company DTEK enhanced security at its facilities on Monday amid escalating crisis in the region as pro-Russian separatist groups have seized local government buildings.

“Today, all attention of the company’s management is focused on a stable operation of our businesses,” DTEK said in the statement. “All coal mines, power generation plants and power distribution companies of DTEK are operating normally, security measures were enhanced.”