MOSCOW (Reuters) - The world's two largest credit and debit card companies, Visa Inc (>> Visa Inc) and MasterCard Inc (>> Mastercard Inc), said on Friday they could no longer support bank cards being used in Crimea, following U.S. sanctions imposed earlier this month.

The United States last Friday prohibited U.S.-registered companies from investing in Crimea or providing services to firms operating there, among sanctions imposed over Russia's annexation of the peninsula from Ukraine.

Visa said in a statement that the sanctions meant it could not offer Visa-branded products and services to Crimea.

"We can no longer support card issuing and merchant/ATM acquiring services in Crimea," it said.

Competitor MasterCard (>> Mastercard Inc) also said that it had to suspend operations with bank cards in Crimea due to the sanctions.

(Reporting by Alexander Winning; Writing by Alexander Winning and Polina Devitt; Editing by Pravin Char/Ruth Pitchford)

Stocks treated in this article : Mastercard Inc, Visa Inc