Ant McPartlin has been released under investigation following his arrest on suspicion of drink-driving on Sunday.

The TV presenter, 42, was arrested in Richmond at around 4pm after failing a roadside breathalyser test.

A Metropolitan Police spokeswoman said that he was "taken to a south London police station for questioning and has since been released under investigation".

Police said enquiries continue.

A statement from McPartlin's publicist said: "Ant has decided to go back into treatment and step down from his current TV commitments. He has spoken with Dec and ITV today and asked for time off for the foreseeable future. As such Saturday Night Takeaway will not be going ahead this Saturday."

An ITV spokesman said: "ITV has taken a joint decision with Ant and Dec's team not to broadcast Saturday Night Takeaway this weekend.

"We will be reviewing options for the last two episodes of the series (March 31 and April 7) which would not feature Ant who is taking time off to seek treatment.

"We very much hope that he gets the help that he needs."