Birmingham City co-owner David Sullivan says their signing spree is far from over.

Latest recruit Roger Johnson followed the arrivals of fellow defenders Stephen Carr, Scott Dann and Giovanny Espinoza along with goalkeeper Joe Hart, on a season-long loan, and striker Christian Benitez.

"I'd anticipate another three to four players coming in the next two to four weeks," he told Sky Sports News.

"We're in advanced stages of negotiations with several clubs for several players but we have a policy for not mentioning who they are because we don't want to let supporters down. But three quarters of them are British."