Iran's Bank Mellat is claiming GBP500 million ($782 million) from the U.K. Treasury after a London court ruled against a British decision to sanction the bank. In June, the U.K.'s highest court ruled against sanctions that had been imposed on Bank Mellat as a result of its alleged links to Tehran's nuclear program. The London ruling follows a similar decision in favor of Bank Mellat at a European Union court. But it won't lead to an end to restrictions against the bank for now because EU sanctions remain in place on Mellat. The U.K. sanctioned Mellat in 2009, banning its operations in the country and freezing its assets after it was accused of facilitating Iran's nuclear program. The measure was expanded to the rest of the European Union the following year.