Somali pirates have freed Turkish-owned cargo MV Bosphorus Prodigy and its crew of 11 after holding it for seven weeks, a non-governmental organisation said Tuesday. The cargo ship and its crew of eight Ukrainians and three Turks were freed late Monday, according to Ecoterra International, an environmentalist organisation which had been closely monitoring Somali piracy. "The crew of 11 is said to be well," Ecoterra said in its newsletter. The Bosphorus Prodigy was hijacked by Somali pirates in the Gulf of Aden on December 15 and had been held off the coast of the northern semi-autonomous state of Puntland.