KYIV, Ukraine — Ukraine’s foreign minister wants the European Union to sanction Iran for providing Russia with the suicide drones that killed at least four civilians in Kyiv on Monday.

The Iranian-made drones have been used elsewhere in Ukraine in recent weeks against urban centers and infrastructure, including power stations.

They are comparatively cheap, costing in the region of $20,000. Their use in swarms presents a challenge to Ukrainian air defenses.

Dmytro Kuleba said on his social media accounts that the next EU sanctions package on Russia “must be strong” and again requested more air defense systems and ammunition for Ukraine.

Speaking in a video statement posted on Facebook, Kuleba said he became the first minister to participate in Monday’s call with the EU foreign ministers from a bomb shelter.

He said he told his EU colleagues that the attacks on Ukraine’s energy facilities amounted to a blow to European energy security, as they derailed Ukrainian energy exports to the EU.