Caveats to the new Russia-Ukraine Black Sea ceasefire deal are causing uncertainty. 

The United States says both countries have agreed to stop military strikes in the Black Sea and develop measures to implement a ban on energy facility strikes.  

But Newstalk ZB European Correspondent Gavin Grey told Andrew Dickens Ukraine's warned any Russian naval movement would be a violation. 

He says in return, Russia's demanding sanctions on banks, insurers, and food exporters must be lifted first.  

Sky News reports Ukrainian President Volodymyr Zelenskyy says the maritime ceasefire is effective immediately, and no one can accuse them not moving towards peace after this. 

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