Where the tug and the tow are of the same owner, the liability for the damages incurred from the towage shall be borne by the tug-owner, Except as otherwise provided by the contract.

The tows in parallel or series connection shall be jointly and severally liable to an injured third party for the damage arising out of the towing navigation. However, the innocent tug(s) shall have a right of recourse against the wrongful tug(s).