"I don't think there is any bank executive that can say with great certainty that economic crime does not exist (within the bank)," Handelsbanken Chief Executive Carina Akerstrom said at a press briefing.

"We have had a very, very careful look and what we have discovered, we have reported, but it is small, small amounts compared to what is out in the media," she said.

(Reporting by Johan Ahlander; Editing by Simon Johnson)