say that mobile phone communications have been cut, some of them also email and fax. so it's hard to get reliable communication, and mr grossi said this is also a big problem, and it's also the case at chernobyl. and he said he was also concerned about the staff at chernobyl, who hadn't been able to rotate out since the 23rd of february, and he's again repeated his offer to go to ukraine to negotiate between the sides about this issue to ensure that the safety and security of these nuclear sites can be maintained. meanwhile, as the fighting continues — ukraine's president zelensky has