Horton was Vale boss for five years

The former Manchester City boss leaves the club just a point off the play-offs in Division Two, but his contract would have ended after this season.

"I've enjoyed my time at Port Vale both as player and as manager," said Horton.

"Times have been difficult but despite this I think it's fair to say we've had some great times."

He added: "Whoever the club choose to take over has a great set of lads to work with.

We would like to thank Brian for the hard work he has put in at the club in difficult times Port Vale chairman Bill Bratt

"I would like to thank everyone for the support I've had in the past and look forward to returning to Vale Park in the future in whatever capacity that may be."

Chairman Bill Bratt insisted Horton's departure after five years in charge was amicable.

"We would like to thank Brian for the hard work he has put in at the club in what could best be described as difficult times.

"All the fans would like to thank him for the trip to Cardiff in the LDV Vans Final in 2001 and leaving us fighting for a play-off position.

"I'm sure they'll join me in wishing him all the best for the future," he told the club's official website.