The BBC has denied claims that 'Dr Who' star David Tennant is to leave the hit show, but has said that a fourth series has yet to be commissioned.
Reports had claimed that 35-year-old Tennant would leave in the middle of the fourth series.
But a BBC spokesperson said: "David is absolutely committed to the show and is currently filming the third series. There is no fourth series currently commissioned yet so we could not confirm his involvement in that yet."
The spokesperson concluded: "David Tennant is committed to the series. When a further series is commissioned, we will be able to confirm his involvement."
