"There is a fact which is known. (Voters) have expressed their opinion in the referendum. Perhaps when more details about the project are available in several years, we should ask people to voice their opinion once again," he told the Žinių Radijas radio station on Thursday.
However, Kubilius said that politicians should wait until the general election is over before starting discussions about a new referendum.
"I think that we must wait until we have a new government and the Seimas and then sit down and talk," he said.
Viktor Uspaskich, leader of the Labour Party which scored best in the first round of elections last Sunday, has also said that a second referendum could be called when the cost of the project and other details are clearer. He said that Sunday's referendum was premature.
Some 34.07 percent of people who cast ballots in the referendum said "yes" to building a new nuclear power plant and 62.70 percent voted "no", according to non-final data from the Central Electoral Commission.