A massive fire that destroyed a large shopping center in Warsaw last year was the result of arson ordered by Russian intelligence services, Polish officials said Sunday on the eve of the one-year anniversary of the blaze.

Russia has targeted the European nation with sabotage, cyberattacks and disinformation due to its support for Ukraine, the Polish government says.

Polish Foreign Minister Radek Sikorski says is ordering the closure of Russia’s consulate in the southern city of Krakow after Polish authorities said Russia was responsible for a fire that destroyed a shopping center in Warsaw last year.