WARSAW (Reuters) -A Russian citizen suspected of hacking IT systems of Polish companies was arrested in Krakow, Polish Interior Minister Marcin Kierwinski said on Thursday.

It is far from certain that Russia is behind a string of recent sabotage incidents affecting Poland’s railway lines and power grid.

Polish Prime Minister Donald Tusk said two Ukrainian citizens working for Russia are suspected of blowing up a railway line ...

Exclusive: Russia reacts after a key rail line in Poland was struck by an explosive device, with Moscow blamed.

Russia’s Foreign Ministry said Thursday that it will close Poland’s last remaining diplomatic mission outside Moscow, ...

Poland’s deputy prime minister said he expects Russia to escalate its sabotage activities in the country following an ...

A Russian national suspected of hacking the databases of online shops was detained by Polish officers from the Kraków branch ...

In what Prime Minister Donald Tusk called an “unprecedented act of sabotage,” a segment of a rail line linking Poland’s ...

Polish officials have pointed the finger at Russia after a key train track was destroyed in what Warsaw said was an “unprecedented act of sabotage” committed by two Ukrainian citizens who were ...

An explosion that damaged a Polish railway track on a route to Ukraine was an “unprecedented act of sabotage,” Prime Minister ...

Polish prosecutors have arrested a Ukrainian man suspected of collaborating with Russia to sabotage a rail track, they said on Monday.