In his evening address, however, President Volodymyr Zelensky made scant mention of operations in the Kharkiv region, but he did say five Russian cruise missiles were shot down on Tuesday, most of them in the south.
Much of the concern centers on the cooling systems for the plant's nuclear reactors. The systems require power to run, and the plant was temporarily knocked offline Thursday because of what officials said was fire damage to a transmission line.
Captured by Russian troops in March but run by Ukrainian staff, Zaporizhzhia has been a hotspot in a conflict that has settled into a war of attrition fought mainly in Ukraine's east and south six months after Russia launched its invasion.
The Zaporizhzhia plant, Europe's largest, had its last remaining main external power line cut off, although a reserve line continued supplying electricity to the grid, the International Atomic Energy Agency (IAEA) said.
Ukraine and Russia have accused each other of risking nuclear disaster by shelling near Europe's largest nuclear plant, which officials said disrupted power lines on Monday and took the sole remaining reactor offline.
The quake, which had a depth of 10 kilometres, struck 17 kilometres south-southeast of Borazjan city at 6:49 am (0319 GMT), the US Geological Survey said on its website. State news agency IRNA said the earthquake was felt in Bushehr, site of the country's sole nuclear power plant.
There were no immediate reports of any casualties or damage. The US Geological Survey said the 5.1 magnitude quake struck 44 kilometres from the southwestern city of Borazjan and at a depth of 38 kilometres.
Working together, ENEC and KEPCO’s achievement of 75 million safe work hours without a Lost Time Injury, LTI, represents a significant industrial safety accomplishment and is the result of their exceptional safety culture, dedication to the continuous improvement of everyday work practices and empowerment of employees to ensure their own safety through a range of safety-related practices and tools.
North Korea’s decision to fire a ballistic missile off its east coast is yet another major provocative action that casts fresh doubts on efforts to resume the stalled denuclearisation