Reuters said earlier Tuesday citing Abdullahi an 'ally' of the pirates: "The pirates holding the Dutch ship demand a ransom of $ 1.1 million while the owners say they are willing to pay $700,000."
A spokesman for Reider Shipping, the owner of the Amiya Scan - which sails under the flag of Antigua and Barbuda and was seized by Somali pirates on May 26 - made no comment on the report, saying different reports were being published every day.
"The talks are continuing," Lars Walder said.
The agency also quoted Abdullahi as saying that the crew were in good health.
The pirates have threatened to kill the crew, comprising four Russians and five Filipinos, if any rescue attempt is made. The hijacked vessel is a cargo ship delivering drilling platform components to Romania from the Kenyan port of Mombasa.
Russia earlier urged Somalia not to take any action that could put the lives of the crew in danger.
On Monday, the UN Security Council passed a resolution permitting countries to enter Somalia's territorial waters to combat "acts of piracy and armed robbery at sea."
According to the UN, 26 pirate attacks on civilian ships have occurred since the start of this year near Somalia, run by a transitional government with little influence in the east African country, many of whose regions are under the control of gangs or extremist groups.
