Internet firm Qihoo 360 Technology Co. (QIHU) said Friday that it is in talks with Inc. (SOHU) to buy the latter’s popular search business Sogou.

Qihoo 360 CFO Alex Xu confirmed by phone that talks were ongoing but said they hadn’t reached the stage where a price for Sogou had come up.

“The first thing we need to figure out is really whether this piece of asset can be integrated into our operations, if not then we can’t do anything,” he said.

Qihoo and Sohu have been in talks “on and off” for “quite a while,” according to Mr. Xu, who also said that Sohu was “probably” also talking to multiple other parties.