(Reuters) - Spanish banking giant Banco Santander is pushing to expand its U.S. operations through a partnership that taps into Verizon's vast customer base, the Wall Street Journal reported on Monday.

The partnership will allow some Verizon customers to earn bill credits by opening high-yield savings accounts with Santander's new digital bank platform, the report added.

Santander will also consider other partnerships as it aims to become a full-service digital bank in the U.S., Ana Botín, Santander's executive chair, told WSJ in an interview.

Santander and Verizon did not immediately respond to Reuters' requests for a comment.

Last month, the Spanish bank announced various investments amounting to over $2 billion in Mexico over the next three years.