The master is suspected of having presented and referred to several allegedly false maritime certificates when the Coast Guard searched the ship.
The man is also suspected of violating the Maritime Act and the Ship Safety Act, according to a press release from the Swedish Prosecution Authority.
These suspicions are not led by the prosecutor but are handled by the Coast Guard, says prosecutor Adrien Combier-Hogg.
The commander, who denies any wrongdoing, is a Russian citizen and was arrested on Saturday. Charges are to be brought no later than March 24.
Following an on-board inspection, the Swedish Transport Agency on Sunday issued an international ban on the ship's use. This means the ship is not allowed to leave anchorage until a number of deficiencies have been addressed.
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