In a nightly address, Zelenskiy said that (quote) "Israel was not alone in this defense," adding (quote) "when Ukraine says that the allies cannot turn a blind eye to Russian missiles and drones, it means that it is necessary to act, and act strongly."

The war in Ukraine has escalated in recent weeks.

Ukraine's top commander said on Sunday that Russian forces aimed to capture the town of Chasiv Yar by May 9, setting the stage for an important battle for control of high ground in the east where Russia is focusing its assaults.

Since late March, Russia has launched multiple major attacks on Ukrainian energy infrastructure, inflicting significant damage to the Ukrainian power system and causing emergency power cuts in some regions.

This senior employee at a plant that is undisclosed for security reasons, says he had to go to the bomb shelter after seeing that "no power units were left intact."

Zelenskiy again called on the U.S. Congress to approve a vital aid package that has been blocked by House Republicans for months.

Republican Representative Steve Scalise said that in response to the Iranian attack, the House would change its schedule to consider legislation that supports Israel and holds Iran accountable.

It was not immediately clear to which legislation he was referring.

Iran has supplied thousands of drones to Russia throughout its invasion of Ukraine. They have been used to exhaust Ukrainian air defenses and hit infrastructure far from the front lines.