According to the Coast Guard, two preliminary investigations are underway in parallel. One concerns a suspected environmental crime and the other a lack of seaworthiness.
"Further measures are necessary, including a search of the house," the Coast Guard stated on Friday evening.
However, with regard to the preliminary investigation into environmental crimes, the investigative measures on board the ship have been completed, according to the Swedish Prosecution Authority.
"We will not take any further action on board the ship, but the investigation itself will continue," says Moa Hörnquist, communications officer at the Swedish Prosecution Authority.
Oil spill
Suspicions of environmental crimes against two people remain, but they have not been arrested and no remand has been requested.
Regarding the preliminary investigation into seaworthiness, which is also led by the prosecutor, an interrogation with one person is planned for this afternoon, according to Hörnquist.
However, she cannot answer whether it is the same person as either of the other two suspected of environmental crimes.
The Coast Guard boarded Flora 1 on Good Friday morning off the coast of Ystad. It is believed to have caused an oil spill in the Swedish exclusive economic zone east of Gotland. The spill was discovered on Thursday morning.
Russian Shadow Fleet
The ship is suspected of belonging to the Russian shadow fleet and was en route from a Russian port in the Gulf of Finland to an unknown destination.
There are 24 crew members of various Asian nationalities on board. The ship is now anchored off Ystad.
Mattias Lindholm, press officer at the Coast Guard, stated on Good Friday that the ship is on the EU sanctions list. It is also unclear where the ship is actually registered. There is information about both Cameroon and Sierra Leone.
"There is a lot of interesting information that we need to move forward with," he said at the time.
