Acting Danish Defense Minister Troels Lund Poulsen announced that Denmark and Germany will conjointly send 80 Leopard 1 tank: which he noted is "a significant number."

"The transfer [of the tanks], the first supplies of which we are about to see, we would describe as a very, very large. The 80 Leopard 1 tanks we are providing, are a significant number," Poulsen told Danish broadcaster TV2.

It was also reported that the sent tanks will be ready for use by June 1. 

Read more: Denmark to train Ukrainian soldiers on its territory

Back in February, the German Bundestag voted to supply Kiev with 88 Leopard 1 tank: approving private arms maker Rheinmetall’s plan to sell 88 Leopard 1s to Ukraine after maintenance work is completed.

Later it was reported that Ukraine could receive up to 160 Leopard 1 tanks from the German defense industry stocks. German companies Rheinmetall and Flensburger Fahrzeugbau were reported to repair most of the Leopard 1 tanks that they have in their stocks and then prepare them for exports to Ukraine.

Read more: Beijing, Damascus denounce Ukraine's targeting of the Kremlin

On Thursday, Kremlin spokesperson Dmitry Peskov said that Russia found the US responsible for masterminding a drone attack on the Kremlin, pointing out that sabotage attacks by Ukraine behind Russian lines had reached "unprecedented momentum".

"Decisions on such attacks are not made in Kiev, but in Washington," Kremlin Spokesperson Dmitry Peskov told a briefing, adding that "Kiev only does what it is told to do."

"Washington should understand clearly that we know this," he stressed.

The Russian official also slammed the attempts by Kiev and Washington to disown the attempted drone attack on the Kremlin as ridiculous.