A smoke rises out of an apartment building Monday, Nov. 11, after a Russian attack in Kryvyi Rih, Ukraine. Ukrainian Emergency Service via AP

KYIV, Ukraine — Russian glide bombs, drones and a ballistic missile smashed into cities in southern and eastern Ukraine on Monday, officials said, killing at least six civilians and injuring about 30 others.

Ukraine President Volodymyr Zelenskyy said that Russia has recently intensified strikes that have long tormented civilian areas, in an apparent effort to unnerve Ukrainians and wear down their willingness to keep up a war that is approaching its 1,000-day milestone.

“Every day, every night, Russia commits the same terror,” Zelenskyy said in a post on the Telegram messaging app. “Except that an increasing number of civilian objects are becoming targets.”

Both Russia and Ukraine are waiting to see how Washington will change its policy on the war after Donald Trump takes office as the U.S. president in January. The U.S. is the biggest provider of military help to Ukraine but Trump has chided the Biden administration for giving Kyiv tens of billions of dollars of aid.

The Ukrainian army intends to expand its mobile units, which are primarily tasked with shooting down drones, in the regions most frequently targeted by Russian strikes, Zelenskyy said on Telegram.

He also said that Ukraine is working on producing its own glide bombs as part of a domestic missile program. Russian glide bombs have significantly impacted the battlefield, as their destructive power reduces settlements to rubble and makes it increasingly difficult for Ukrainian forces to hold their defensive fortifications.

Ukrainian forces are being slowly pushed backward in the eastern Donetsk region, where Russia is bringing its greater military might to bear. Zelenskyy said Ukraine would conduct a “substantial reinforcement” in areas near the Donetsk settlements of Kurakhove and Pokrovsk, where Ukraine’s army is in danger of being overrun.

Zelenskyy added that Ukraine is holding its positions in Russia’s Kursk border region, where Western and Ukrainian officials say Russia is being helped by thousands of newly arrived North Korean troops. He said Russia has deployed some 50,000 troops to Kursk.

The major cities struck Monday by Russia are close to the approximately 600-mile front line.

Russian drones hammered the southern city of Mykolaiv, killing five people and injuring a 45-year-old woman, local authorities said. Around two dozen people sought psychological help following the attack that damaged houses and stores, officials said.

Mykolaiv, located about 40 miles northwest of the front line in the Kherson region, frequently comes under Russian attack.

An overnight attack on Zaporizhzhia, also in the south, with three powerful glide bombs killed one person and injured 21, including a 4-year-old boy, Ukraine’s National Police said.

The strikes partially destroyed a two-story apartment building and damaged a dormitory.

A five-story apartment building in Kryvyi Rih, Zelenskyy’s hometown in central Ukraine, was hit by a Russian ballistic missile, injuring at least eight people. Emergency services were searching through the rubble, Oleksandr Vikul, head of Kryvyi Rih Military Administration said.

The missile destroyed all five stories in one part of the building, he said.

Meanwhile, Ukraine’s intelligence agency claimed in a statement it destroyed a Russian Mi-24 assault helicopter parked at the Klin-5 airfield in the Moscow region. The claim could not be independently verified.

The Russian Defense Ministry said Monday that 17 Ukrainian drones were destroyed over the Russian regions of Kursk, Belgorod and Voronezh overnight and in the morning.

Firefighters work Monday, Nov. 11, on a site of an apartment building destroyed by a Russian attack in Kryvyi Rih, Ukraine. Ukrainian Emergency Service via AP

A woman with a child sit inside a rescuers' car Monday, Nov. 11, after a Russian attack in Zaporizhzhia, Ukraine. Ukrainian Emergency Service via AP

A building is seen Monday, Nov. 11, destroyed by a Russian attack in Zaporizhzhia, Ukraine. Ukrainian Emergency Service via AP

A building is seen Monday, Nov. 11, destroyed by a Russian attack in Zaporizhzhia, Ukraine. Ukrainian Emergency Service via AP

A rescuer-psychologist, right, talks to local residents in a yard of residential area Monday, Nov. 11, after a Russian attack in Mykolaiv, Ukraine. Ukrainian Emergency Service via AP

Damaged cars are seen Monday, Nov. 11, on a site of a Russian attack on residential area in Mykolaiv, Ukraine. Ukrainian Emergency Service via AP

Smoke rises out of an apartment building Monday, Nov. 11, after a Russian attack in Kryvyi Rih, Ukraine. Ukrainian Emergency Service via AP

A woman clears rubble Monday, Nov. 11, inside her apartment at a hostel for displaced persons damaged by a Russian strike in Zaporizhzhia, Ukraine. Ukrainian Emergency Service via AP

Damaged cars are seen Monday, Nov. 11, in a yard of an apartment building destroyed by a Russian attack in Kryvyi Rih, Ukraine. Ukrainian Emergency Service via AP

Firefighters work Monday, Nov. 11, on a site of an apartment building destroyed by a Russian attack in Kryvyi Rih, Ukraine. Ukrainian Emergency Service via AP

Women clear the rubble Monday, Nov. 11, from a sports center damaged by a Russian strike in Zaporizhzhia, Ukraine. Ukrainian Emergency Service via AP

A municipal worker clears the rubble Monday, Nov. 11, at a residential house damaged by a Russian strike in Zaporizhzhia, Ukraine. Ukrainian Emergency Service via AP

A man looks from a window of a hostel for displaced persons damaged by a Russian strike in Zaporizhzhia, Ukraine, Nov. 11. Ukrainian Emergency Service via AP