Pirates in Somalia have released a Greek-owned ship that was hijacked two months ago.
Greek officials say the tanker's cargo of refined oil is intact and its 19 crew members are safe.
The owners of the MV Genius declined to say whether a ransom had been paid to the pirates.
In the past two weeks Somali pirates have seized eight vessels, including a huge Saudi tanker carrying $100m (£67m) worth of crude oil.
This high profile case has outraged the maritime industry and the international community have called for joint action against piracy.
Dangerous waters
"The pirates released the ship today and it is now sailing to freedom," said Andrew Mwangura, the head of the East African Seafarers Association.
The Greek Merchant Marine Ministry says the 6,765 tonne vessel was on its way to the United Arab Emirates and is about 500m (800km) off the coast of Somalia.
Somali pirates seized the tanker on 26 September in the Gulf of Arden near the Horn of Africa, waters that are highly dangerous for shipping.
The MV Genius was hijacked on the same day as MV Favina, a Ukrainian ship that was carrying a cargo of tanks and weapons, and it is still being held by pirates.
Pirates based in war-torn Somalia regularly attack vessels plying major commercial shipping routes nearby.
This year here have been 95 attempts at capturing ships by pirates in the Gulf of Arden, 39 of which have been successful, according to maritime organisations.
The ''Sirius Star''
 militants have vowed to fight pirates holding the  oil tanker  off the Somalian coast. The militants are angered over the seizure of a 'Muslim' ship.

The tanker is anchored near , a town controlled by the Islamists. The ''Sirius Star'', owned by Saudi state firm , has a crew of 25 from , Saudi Arabia, , , and . A ransom of $25 million is being sought, a quarter of the value of the vessel's cargo of oil.

"Hijacking a Muslim ship is a major crime," said militant spokesman Sheikh Abdi Rihin Isse Adow. "We strongly oppose piracy actions in our waters." Spokesman Abdirahim Isse Adow said: "We have arranged our fighters. The first step is to cut off pirates inland from those on the Saudi ship by restricting their supplies and cutting their communications."

They could have a fight on their hands, as the pirates have also been bringing in fighters in preparation for possible military attacks from various foreign navies that have arrived in the area to combat the growing threat from pirates. "I hope the owner of the tanker is wise enough and won’t allow any military option because that would be disastrous for everybody. We are here to defend the tanker if attacked," said pirate Abdiyare Moalim.

91 ships have been attacked by pirates in the  since the year began, but the ''Sirius Star'' is both the largest and furthest from shore to be taken, captured some 420 nautical miles (833 kilometers) from Somalia's coast. Shipping companies have rerouted around the area.

The news is not entirely bad, however, as a Greek tanker full of refined oil was released today, complete with cargo intact and crew of 19 unharmed. The MV ''Genius'', now headed out of the area, was captured September 26, the same day as the  was taken. The ''Faina'' remains held with a cargo of military hardware including tanks.