Authorities in Denmark, Estonia, Britain and the United States are investigating payments totaling 200 billion euros ($229 billion) made through Danske Bank's tiny Estonian branch between 2007 and 2015.

The threat of a heavy fine from the U.S. Department of Justice has sent Danske's shares down almost 50 percent since March, erasing around $15 billion of market value and raising the prospect of legal action from investors.

The Maersk shipping tycoon family, the bank's top shareholder with a 21 percent stake, ousted chairman Ole Andersen and called Friday's shareholder meeting to nominate Karsten Dybvad, 62 and another board member.

The more than 600 shareholders at the extraordinary general meeting (EGM) in Copenhagen elected Dybvad to Danske's board.

The modified board of directors then elected Dybvad, who for the last eight years was CEO of the Confederation of Danish Industry, one of the country's most influential lobby groups, as its new chairman.

Prior to that he had a long career as a government official working with ministers across the Danish political spectrum.

"We hope and are confident that Karsten can contribute to the dialogue with authorities which probably will take up a lot of time in the next couple of years," said Robert Maersk Uggla, A.P. Moller Holding's chief executive, at the meeting.

Besides restoring Danske's image, Dybvad is also tasked with finding a new chief executive to head the bank and ensure potential legal cases, not least in the United States, don't detract from day-to-day business.

"That's the first task," Dybvad told Reuters. "We will look at this with fresh eyes so it will take some time, but then we hope we can find exactly the right CEO," he said.

Dybvad declined to say if he saw current interim CEO Jesper Nielsen as a candidate for the role, although he said that he was doing a good job.

When asked if he wanted the entire board - consisting of 12 members, three elected by employees - replaced as a measure to soothe U.S. authorities and thus try to minimize potential fines over the money laundering scandal, Dybvad said that two members could be elected at a general meeting in three months time, in addition to the two on Friday.

"That's practically a new board. So we'll push forward together," he said.

Outgoing chairman Andersen and other managers were criticized harshly by several private shareholders at the meeting.

"There were probably things that many people should have done differently, and I will of course also reflect on whether there were things I should have done differently," Andersen told Reuters after the EGM, adding: "There probably is. It is probably primarily related to the recent years."

The investment firm of the Maersk family, which controls shipping group A.P. Moller-Maersk, is usually a passive shareholder. However, Maersk Uggla said they had acted because they felt that Danske's board had not moved fast enough to replace Andersen.

The move was welcomed by others at the meeting.

"We see this demonstration of active ownership as positive," said Mikael Bak, chief executive at the Danish Shareholders' Association, a lobby group for private investors.

"We would have liked to see the large shareholders a little earlier, perhaps far earlier," he added.

Claus Wiinblad, senior vice president at Denmark's largest investor, pension fund ATP, said Dybvad faced big challenges.

"There is great task in handling the ongoing investigations in relation to the Estonia case in a way that can contribute to re-establishing confidence in Danske Bank," he said.

Dybvad said he had decided to prioritize his new job as chairman, stepping down from the Confederation of Danish Industry on Friday.

(1 Danish crown = $0.1524)

(Additional reporting by Simon Jessop and Kirstin Ridley; Editing by David Holmes, Elaine Hardcastle and Kirsten Donovan)

By Teis Jensen