Comment by tgsovlerkhgsel

The diplomatic option: Severe penalties for such damage and requiring insurance/bonds for it could be one option. Let the insurance companies figure it out. Insurance companies might decide that ships with a Russian crew or going to/from Russian harbors are uninsurable or very expensive.

The "language that Russia understand" option: "If you do this one more time, ships going to/from your harbors won't be allowed through the straits anymore, IDGAF what international law says". Should it happen again, inform any such ship that they're not allowed passage and will be fired upon if they try. If they try, follow through.