announced on Wednesday it had acquired a 20% stake in Zhenai Inc, the company behind one of China's largest online dating sites.

Zhenai Inc operates a Chinese dating site with more than 30 million registered users. The terms of the deal were not disclosed. acquired the stake, noting it wanted to expand its global footprint in a fast-growing market. already has services in 25 countries, including China.

A spokeswoman said she wasn't sure if intends to continue to operate its own site in China, which competes with Foreign internet companies have often struggled to break into the country's vast market and run their own businesses. Google, eBay, and most recently Groupon have all faced intense competition from Chinese Internet firms.

In the case of China's online dating market, is just one of several leading players. Rival has 40 million registered user accounts. Earlier this year Jiayuan listed itself on the NASDAQ stock exchange. said in a statement it plans to leverage's knowledge to improve its services in China.