Juniper Networks Inc said on Friday it was one of the victims of a cyber attack in China first brought to light by Google Inc, which has threatened to quit the country.

Juniper Networks recently became aware of, and is currently investigating, a cyber security incident involving a sophisticated and targeted attack against a number of companies, Juniper spokeswoman Amy Lee said in a statement.

Internet search giant Google has threatened to exit China after the cyber-attacks. Cyber-experts have said more than 30 firms were victims of attacks that security experts said were delivered by exploiting a flaw in Microsoft Corp's Internet Explorer browser. (Reporting by Ritsuko Ando and Jim Finkle; editing by Gunna Dickson)