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.
Indonesian rescuers were searching on Sunday for 140 people from a passenger ship that sank in the Java Sea after 103 others were evacuated, one of whom died, a search and rescue agency official said.
Authorities in the Philippines said on Sunday it could take weeks or months to identify the victims of a ferry fire that killed 76 people, as forensic experts begin collecting and comparing DNA samples and investigators determine the cause.
Saudi Arabia shut its East-West oil pipeline on Friday after it was hit in a drone attack, disrupting a key route used to bypass shipping problems in the Strait of Hormuz.
BRICS members agreed on a joint declaration on Saturday, expected to condemn unilateral aggression by any country without naming individual states, according to sources cited by Reuters.
Philippine rescuers recovered 41 more charred remains from a ferry fire, authorities said on Saturday, raising the death toll to 76 and leaving 13 people unaccounted for, as forensic teams faced the daunting task of identifying the victims.
His Highness Sheikh Khaled bin Mohamed bin Zayed Al Nahyan, Crown Prince of Abu Dhabi, met Dr Masoud Pezeshkian, President of Iran, on the sidelines of the 18th BRICS Summit in New Delhi, India.
The United Arab Emirates expressed its solidarity with the Democratic Republic of the Congo following a fire at two schools in the city of Bukavu, which resulted in dozens of deaths and injuries.