U.S. retail group Wal-Mart Stores Inc will close its Moscow office amid a lack of acquisition opportunities, abandoning for now its long-running quest to enter the Russian market.

"Since we have decided to enter the (Russian) market through acquisition ... and since there is no clear acquisition partner in the near term, there is not a business reason to continue our Moscow representative office," Doug McMillon, CEO of Wal-Mart International, said in a statement.

His comments come a week after retail chain Kopeika -- previously widely tipped as a Wal-Mart target -- was bought by domestic leader X5 in a 51.5 billion rouble ($1.66 billion) deal.

Meanwhile privately held Lenta, another potential Wal-Mart interest, has been torn apart by a shareholder dispute that has seen it operate without a CEO.

McMillon said Wal-Mart, the world's biggest retailer, would continue to focus on other major overseas markets.

"We continue to be excited about our international business, including markets where we already operate, such as Brazil, China and India, where we have tremendous growth opportunity," McMillon said in the statement.

X5's move for Kopeika was hailed by analysts as a potential catalyst for a wave of deals as a recovery in Russian consumer confidence made the fragmented sector ripe for consolidation. But overseas retailers have found it tough to succeed in Russia from scratch, with Sweden's IKEA at times complaining openly about corruption and a surplus of red tape.

Rare success stories include Germany's Metro and France's Auchan, which have more than 100 Russian stores between them.

Wal-Mart has been more successful in its bid to enter the fellow emerging market of South Africa, where it recently agreed to pay $2.3 billion for control of Massmart Holdings. (Reuters)