Sharon Osbourne denies making racist comments about former The Talk co-host

US chat show The Talk will remain off air while an investigation into Sharon Osbourne’s clash with a co-star takes place, network CBS said (Richard Shotwell/Invision/AP, File)

Sharon Osbourne has denied allegations she made racist comments about one of her former co-hosts on US chat show The Talk.

The show is currently off air while network CBS investigates Osbourne’s clash with another presenter last week.