UPDATE 5-Pirates kidnap 19 crew members from Greek tanker off Nigeria

(Adds comment from Nigeria's maritime regulator)
ATHENS, Dec 5 (Reuters) - Pirates have kidnapped 19 crew
members from a crude oil tanker off Nigeria in an area where
acts of piracy are on the rise, an official with the ship's
operator said on Thursday.
The loaded vessel, the Nave Constellation, was attacked 77
nautical miles off Bonny Island on Tuesday and 18 Indians and
one Turk from the crew were seized, the official said.
Seven other crew members remain on board the vessel. Neither
the vessel nor the cargo were damaged, the official said.
The shipping industry has warned in recent months about the
increasing dangers faced by seafarers in the Gulf of Guinea,
particularly around Nigeria, including kidnappings by pirates.
The International Maritime Bureau said in October the Gulf
of Guinea accounted for more than four fifths of crew
kidnappings globally.
Maritime security officials say that over the past year
there has been a growing shift by pirate gangs in the Gulf of
Guinea and especially Nigeria towards kidnapping crews rather
than stealing cargoes, to try to extort ransom from ship owners.
The head of Nigeria's Maritime Administration and Safety
Agency Dakuku Peterside, said authorities were working to ensure
the crew are secured and those abducted, released. He said the
vessel owners had operated for 10 days in Nigerian waters
without contacting harbour masters or Nigerian authorities.
The Hong Kong-flagged supertanker, capable of carrying up to
2 million barrels of oil, is operated by Greek shipping company
Navios Tankers Management.
"We are doing everything necessary to make sure that the 19
crew members will return safe," the official at Navios said,
adding that their families have been informed.
An Indian government source said its mission in Nigeria had
taken up the matter of the kidnappings with the Nigerian
government and security agencies.
The vessel was carrying crude for Indian refiner Hindustan
Petroleum Corp HPCL.NS , a source at the company said.
The vessel was chartered by French oil company Total
TOTF.PA to deliver Bonny Light oil at Vizag in southern India,
the source said. "Total has told us it would arrange alternative
crew to get the cargo delivered on time," the source, who did
not wish to be identified, told Reuters.
In a statement sent to Reuters, Total confirmed the piracy
act. "The vessel is chartered by a Total shipping entity. Crew
management and nautical operations are managed by the shipowner
and technical operator of the vessel," it said.
Nigerian Navy commander Captain Kolawole Oguntuga said the
vessel, which loaded Shell Bonny Light, was hijacked soon after
leaving the terminal. The ship did not request a navy escort to
provide them with adequate protection, he said.