Icelandic investor Baugur Group said it could make a joint bid for luxury department store operator Saks with Dubai-owned Landmark Group, and shares of Saks rose nearly 9 percent after hours.

Baugur, owner of Britain's House of Fraser, said in a filing with the U.S. Securities & Exchange Commission that it intended to hold discussions with Saks' management and board regarding a possible acquisition, and to discuss possible financing.