Nor of

[Maybo]

The relative of one of the workers stuck at the plant - who we are not naming for safety reasons - told the BBC that the Russian side was willing to let them swap shifts, but that they could not guarantee their safety on the journey home, nor of workers travelling to take their place. (Ukraine war: Chernobyl workers' 12-day ordeal under Russian guard by Ben Tobias)

I don’t understand “nor of”.

 

[jutfrank]

... but that they could not guarantee their safety on the journey home, nor [could they guarantee the safety] of workers travelling to take their place.