Railways were suspended for most of Thursday in all of Poland, disrupting an important means of transport for Ukrainian refugees after what authorities said was a disruption to its traffic control system.
Al-Arabiya / Al-Hadath correspondent reported that the trains had stopped in several Polish provinces, indicating that there were suspicions of a cyber attack.
Trains began reporting problems around 4:00 am local time (0300 GMT), while the disruption affected more than 800 kilometers (500 miles) of railways, the BKBBK railway said.
And he added in a statement that the work crews had completed the repairs by six in the evening, according to “Reuters”.
Infrastructure Minister Andrzej Adamczyk said on Twitter that the outage affected around 80% of rail traffic in Poland. He added that identical defects appeared in the traffic control systems, which were produced by a unit of the French company Alstom train maker, also appeared in India, Thailand, Peru, Italy, Sweden and the Netherlands.
In turn, Solomir Siza, CEO of Alstom in Poland on Thursday told Reuters via email that the outage was caused by a defect in data encryption and that the passengers were not at risk.
Nearly two million people have fled Ukraine in Poland since the Russian attack on February 24, and with free train tickets available for refugees, the network has become an important means of transportation for those traveling to be with friends and family in all over the country.
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