KYIV, Ukraine — Russia battered much of Ukraine on Monday, firing scores of missiles and drones that killed four people, injured more than a dozen and damaged energy facilities in attacks that President Volodymyr Zelenskyy described as “vile.”

The barrage of more than 100 missiles and a similar number of drones began around midnight and continued through daybreak in what appeared to be Russia’s biggest onslaught in weeks.

Ukraine’s air force said swarms of Russian drones fired at eastern, northern, southern and central regions were followed by volleys of cruise and ballistic missiles.

“Like most previous Russian strikes, this one was just as vile, targeting critical civilian infrastructure,” Zelenskyy said, adding that most of the country was targeted — from the Kharkiv region and Kyiv to Odesa and the west.

Explosions were heard in the capital, Kyiv. Power and water supplies in the city were disrupted by the attack, Mayor Vitali Klitschko said.

Prime Minister Denys Shmyhal said Russia fired drones, cruise missiles and hypersonic ballistic Kinzhal missiles at 15 Ukrainian regions — more than half the country.

“The energy infrastructure has once again become the target of Russian terrorists,” Shmyhal said, adding that the state-owned power grid operator, Ukrenergo, has been forced to implement emergency power cuts to stabilize the system.

He urged Ukraine’s allies to provide long-range weapons and permission to use them on targets inside Russia.

“In order to stop the barbaric shelling of Ukrainian cities, it is necessary to destroy the place from which the Russian missiles are launched,” Shmyhal said. “We count on the support of our allies and will definitely make Russia pay.”

The Russian Defense Ministry said the attacks used “long-range precision air- and sea-based weapons and strike drones against critical energy infrastructure facilities that support the operation of Ukraine’s military- industrial complex.”

At least four people were killed — one in the western city Lutsk, one in the central Dnipropetrovsk region, one in Zhytomyr in the country’s center and one in the partially occupied Zaporizhzhia region in the southeast, local officials said. Thirteen people were wounded.

In Russia, officials reported a Ukrainian drone attack overnight.

Russia’s Defense Ministry said a total of 22 Ukrainian drones were intercepted overnight and in the morning over eight provinces, including the Saratov and Yaroslavl regions in central Russia.

Russia also said its troops had fended off Ukrainian attempts to advance on half a dozen settlements in the Kursk region, where Ukraine launched an incursion Aug. 6 that caught Russia off guard.