Rafael Grossi, head of the International Atomic Energy Agency (IAEA), said on Friday that the number of attacks on the Russian-controlled Zaporizhzhia nuclear power plant in Ukraine had increased, Russia's TASS state news agency reported.
Grossi was speaking after holding talks in Moscow with Alexei Likhachev, head of Russian nuclear corporation Rosatom.
Russian forces took control of the plant soon after the start of the war with Ukraine in 2022 and Moscow has said the Zaporizhzhia region, which it does not fully control, is now part of Russia, an assertion which Kyiv rejects.
Rosatom said in a statement after the Grossi-Likhachev talks that Ukraine was constantly carrying out attacks on Energodar, the closest town to the nuclear plant.
But Grossi was quoted by TASS as saying that it was impossible to determine which side was carrying out the attacks based on the examination of drone fragments.
"The small fragments of plastic or wood left by the alleged drones do not allow us to speak about the origin of these fragments. However, I would like to assure you that I am raising these issues at the highest level of international discussions," Grossi was cited as saying.
The US military said on Monday it destroyed six Iranian small boats and intercepted Iranian cruise missiles and drones as Tehran sought to thwart a new US naval effort to open shipping through the Strait of Hormuz.
Two cases of the deadly hantavirus have been confirmed, and five more are suspected among people who were on a luxury cruise ship now held in the Atlantic near Cape Verde, the World Health Organisation said in its most detailed update on the outbreak.
President Vladimir Putin has declared on Monday a two-day ceasefire in the conflict with Ukraine on May 8-9 to mark Russia’s World War Two victory, but Ukrainian President Volodymyr Zelenskyy countered with his own proposed pause in fighting starting earlier, on the night of May 5‑6.
A blast at a fireworks factory in China has killed at least 26 people and injured 61, flattening buildings and sending towering clouds of smoke into the sky, and prompting President Xi Jinping to order a thorough investigation, state media reported on Tuesday.
A small airplane with five occupants crashed into a building on Monday in the city of Belo Horizonte in southeastern Brazil, killing three people, local officials and firefighters said.