The operation of Block 1 of the nuclear power plant in Paks, central Hungary, was suspended on Thursday morning due to the malfunction of the IT control system which has however not undermined the block's safety, the Hungarian national atomic energy office (OAH) was quoted by the MTI news agency as saying on its website.
"The block's operation stalled automatically in line with nuclear safety regulations defined in a contingency plan prepared in advance for such eventualities," the office said.
Antal Kovacs, a spokesman for the company that runs the Paks nuclear power plant, said that Block 1 "is expected to be reconnected to the entire network on Friday noon."
The stoppage of this part has not affected the operation of the other four reactors.
This nuclear power plant is situated 74 kilometres of the Hungary-Croatia border. "Beli Manastir and Osijek are 90 and 120 km away respectfully from Paks NPP to the south", according to data provided by the Croatian State Office for Radiological and Nuclear Safety.