SEOUL. Aug 7: North Korea may posses enough plutonium the main ingredient for a nu clear weapon, to build three or four nuclear warheads a Seoul newspaper said today reports Reuter

The influential Chosun 1B» quoted an unidentified senior government official as saying the North had halted the oper ation of its five megawatt rest tar at Yongbyon north of Pyongyang, three times since 1900

The offic ial said the stop pages were for 71 days in 19* a month to 1900 and 50