Somali pirates are demanding a ransom to free an oil tanker and crew seized off the coast of Somalia on Monday.

Foreign Media reported that European Union anti-piracy outfit had made contact with the tanker, but said that the armed men aboard the Aris 13 had not yet decided on the amount they wanted in ransom.

The Comoros-owned ship is manned by eight Sri Lankan crew. The Sri Lanka Foreign Ministry said it was in touch with shipping agents and officials abroad for more information.

Sri Lanka Navy said yesterday it was trying to establish contact with the tanker to ensure the safety of the Sri Lankan crew.