[BNW] Embarked enemy land units block city from working ocean tiles?

[Athenaeum]

You know how an enemy trireme can prevent opponents from working coast/ocean tiles within a 2 tile radius? What is the applicable radius for an embarked land unit? I used to know this, because I had a spy in an opponent's coastal capitol and noticed my embarked land units were preventing him from working coastal tiles. But I don't remember how close to the actual tiles my land unit had to be for this to take effect.

 

[Equilin]

it's the same, 2 tiles