Russia-Ukraine updates: Putin suspends key US-Russia nuclear treaty in speech denouncing West

A new barrage of missiles strikes was launched against Ukraine on Monday, hitting targets across the country, including the capital city of Kyiv, officials said.

Casualties and damage from the attacks were being assessed, Ukrainian officials said.

The majority of the missiles were shot down by air defense forces, Ukrainian officials said.

Ukrainian air force spokesman Yuriy Ihnat said the Russians launched missiles from the Volgodonsk, Caspian and Black seas.

The strikes damaged two infrastructure objects in the Odesa region, leaving the area without electricity and running water, officials said. One person was hospitalized, according to Ukrainian officials.

Odesa Mayor Gennadiy Trukhanov said a missile hit a substation that supplies the city of Belvaevska's pumping station with electricity.

According to the office of Ukrainian President Volodymyr Zelenskyy, missile strikes in the Zaporizhzhia region killed two people and injured three others, including a toddler, in the village of Novosofiyivka.

Explosion were also heard in Cherkasy, Kharkiv, Dnipropetrovsk, Vinnytsia, Khmelnytskyi, Kherson and Cherkasy, officials said.

The missile strikes followed reports from Russian media outlets that drones were used to bomb two military air bases in Russia, hundreds of miles from the Ukrainian border.

Ukrainian officials have not claimed responsibility for the drone attacks, but Mykhailo Podolyak, a top adviser to Ukraine’s president, posted a cryptic tweet, saying "if you launch something very often into the airspace of other countries, sooner or later the unknown flying objects will return to the place of departure."

-ABC News' Guy Davies

Ukraine said it would not consider peace talks before the last Russian soldier leaves Ukrainian territory. This comes after President Joe Biden indicating he would be willing to speak with Russian President Vladimir Putin if he has legitimate interest in peace negotiations.

Ukraine also said that there must not be any peace negotiations without Ukraine, reiterating that Biden has been clear that there won't be any talks happening without the participation of U.S. allies and Ukraine.

-ABC News' Will Gretsky

The International Atomic Energy Agency expressed optimism over possibly creating a safe zone around the Zaporizhzhia nuclear power plant before the end of the year.

"I know that President Putin is following the process, and I do not rule out another meeting with him soon, as well as with Ukrainian President Zelensky," IAEA Director General Rafael Rossi said in an interview with Italian newspaper La Repubblica.

"There is a concrete proposal on securing Zaporizhzhia and important progress has been made. ...The two sides now agree on some basic principles. The first is that of protection: it means accepting that you don't shoot 'on' the plant and 'from' the plant. The second is the recognition that the IAEA is the only possible way forward: that was the heart of my meeting with President Putin in St. Petersburg on October 11," Rossi added.

-ABC News' Will Gretsky

Packages believed to be blood-soaked and containing the eyes of animals, were sent to Ukrainian embassies worldwide, including in Hungary, Netherlands, Poland, Croatia and Italy, the Ukrainian ministry of foreign affairs said Friday.

The entrance to the ambassador's residence in the Vatican was also vandalized, according to the Ukrainian ministry of foreign affairs.

The Ukrainian embassy in the U.S. received a letter with a photocopy of a critical article about Ukraine. Like most other envelopes, the letter arrived along with others from the territory of an unnamed European country.

"We have reason to believe that a well-planned campaign of terror and intimidation of Ukrainian embassies and consulates is taking place. Not being able to stop Ukraine on the diplomatic front, they are trying to intimidate us. However, I can immediately say that these attempts are useless. We will continue to work effectively for the victory of Ukraine," the Ukrainian Minister of Foreign Affairs Dmytro Kuleba said in a statement.

The Ukrainian embassy in Spain received a letter-bomb on Wednesday which was opened and ignited, resulting in one slight injury.

A similar envelope was sent to the U.S. embassy in Madrid, but it was detected before going off, according to Spanish officials.

All Ukrainian embassies and consulates have been placed under heightened security. The Ukrainian Ministry of Foreign Affairs called on foreign governments to guarantee maximum protection of Ukraine's diplomatic institutions.

-ABC News' Will Gretsky