Ukraine's pro-Russian former president, Viktor Yanukovych, has been linked to a widening scandal involving Sweden's Swedbank, according to reports by Swedish Television that was broadcast on February 28.

According to documents reviewed by Sweden's state-owned broadcaster, Swedbank appears to have been an instrument for transferring millions of euros in kickbacks that were acquired by Yanukovych while he was in office to other EU banks.

Over the last year, Swedbank’s CEO has consistently den...