August 18, 2022 Russia-Ukraine news

Ukrainian President Volodymyr Zelensky on Wednesday repeated his demand that Russian forces pull out of the occupied Zaporizhzhia nuclear power plant in southeastern Ukraine.

The Russian army "must withdraw from the territory of the nuclear power plant and all neighboring areas, and take away its military equipment," Zelensky said in his daily video message.

Both Ukraine and Russia have accused each other of threatening nuclear terrorism, particularly around the plant, which Russia has controlled since March.

The European Union and 42 countries this week urged Russia to immediately withdraw forces from the plant, while the IAEA has warned that attacks on the facility risk a potential radiation leak.

In his video address, Zelensky said "Ukrainian diplomats, our nuclear scientists and the IAEA are in constant touch" and are working on "sending the IAEA mission to the Zaporizhzhia nuclear power plant."

Zelensky is due to meet UN Secretary General António Guterres on Thursday in the western city of Lviv.

Battle update: In his address, Zelensky also referred to the situation on the front lines in the eastern Donetsk and northeastern Kharkiv regions, saying, "the Avdiivka area, Bakhmut area, Kharkiv region, and some other regions are where the most difficult fighting is going on right now."

The Ukrainian military acknowledged Wednesday that Russian forces had "partial success" in advancing on some parts of the front west of Donetsk city.

The Ukrainian armed forces have published a video purportedly showing a strike on a Russian position in the occupied southern Kherson region.

The armed forces said between 10 and 15 Russian soldiers had been killed in the strike against a Russian post near the town of Nova Kakhovka.

Russian positions in and around Nova Kakhovka — as well as ammunition depots and rail links — have been repeatedly hit by long-range Ukrainian weapons and combat aircraft over the past month.

Ukraine was behind three explosions that rocked Russian military facilities in the annexed province of Crimea this past week, including an explosion at a Russian air base on the peninsula's west coast that wrecked several airplanes, according to a Ukrainian government report circulated internally and shared with CNN by a ​Ukrainian official. ​

The official requested anonymity because they were not authorized to share the information with the media.

The report describes the Saki air base, which was rocked by explosions last Tuesday, as a hard but one time loss for Russian military infrastructure in the peninsula, with subsequent attacks as proof of Ukraine's systematic military capability in targeting Crimea.

The Aug. 9 incident at Saki air base, which destroyed at least seven military aircraft, severely damaged the facility and killed at least one person​.

Russia claimed it was a result of an accident and Ukrainian officials have so far declined to confirm on the record that they were responsible. What caused the explosions remains unclear.

In a speech following the incident, Ukrainian President Volodymyr Zelensky said the war "began with Crimea and must end with Crimea — its liberation."​

Another set of explosions were reported in Crimea this week, on Aug. 16, this time at an ammunition depot in Maiske and at an airfield in Gvardeyskoe.

Russian officials said the incident in Maiske had been the result of sabotage​, but they did not specify the kind of sabotage, or whom they believed was responsible.

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A long-touted Ukrainian counteroffensive to retake territory lost to Russia could begin soon, a spokesperson for Ukraine's Defense Intelligence said in a televised address on Wednesday.

Ukrainian officials have been hinting at a counteroffensive to retake occupied territory — specifically in the south — for weeks, but so far they’ve limited their actions to striking Russian supply lines, air bases and ammunition depots, with very small gains at the front. 

"This is not about binding to any dates, however, we have to consider [the] factor of the Independence Day of Ukraine," Yusov added, referencing the country’s independence day on Aug. 24. 

"The Main Directorate of Intelligence has been saying for a long time that August and September will be extremely important periods for the further development of events on the entire front."