Denmark’s Christiania Gas is still trying to establish contact with pirates that have taken nine seafarers from its LPG tanker in the Gulf of Guinea, West Africa, last week.

“Christiania Gas report that it is continuing its efforts to establish contact with those that are holding its 9 seafarers that were taken off the LPG tanker CGas Saturn and secure the crew members’ earliest and safe release,” the company’s statement read.

Nine crew members have been taken from the CGas Saturn after pirates stormed the LPG tanker. The Portugal-flagged LPG tanker 3090-dwt CGas Saturn, built in 2003, was attacked by pirates in the Gulf of Guinea, West Africa, on December 3.

A spokesperson from Denmark’s Christiania Gas confirmed on Friday that four other seafarers of CGas Saturn remained on board of the ship and were able to navigate the ship to a safe berth in port in West Africa.

One of the four crew sustained injuries during the attack and is receiving medical care in an onshore hospital.

The company said that it is greatly concerned over the situation. The Christiania Gas spokesperson noted that the company is liaising with international authorities and experts, and together with its partners is providing all possible support to the next of kin of the seafarers during this extremely difficult period.

The company also highlighted that it will not provide any further information in order not to jeopardize the safety of its seafarers, and would ask for this position to be respected.