Beginning at 04:05 EEST on 29 April 2022, a series of multiple denial-of-service attack (DDoS) attacks were launched against several Romanian government, military, bank and mass media websites. Behind the attacks was the pro-Kremlin hacking group Killnet, who resorted to this in response to a declaration made by Florin Cîțu, the then-president of the senate of Romania, that Romania would provide Ukraine with military aid. The Russian Federation, who invaded the latter, publicly spoke against Western military support for Ukraine, stating that it would result in "lightning-fast retaliatory strikes". The DDoS attacks continued until 1 May.