An Oxfordshire MP has said he will be standing down ahead of the July 4 General Election as his "plans changed" after suffering a stroke.

John Howell is the incumbent Conservative MP for the Henley - soon to be renamed Henley and Thame - constituency and he announced in April last year he would not recontest the seat at the next election in light of his coming towards his mid-70s.

Mr Howell, who has served the constituency since 2008, will be replaced by Caroline Newton as Conservative candidate for the safe seat.

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Speaking to the Oxford Mail, he said: "I think it came as rather a surprise to everyone when speculation increased that the Prime Minster might call an early summer General Election.

"There had been a general view that it would be in November. The timing is interesting but I understand the Prime Minister’s rationale.

Oxford Mail: Henley.Henley. (Image: Archant)

"In this constituency there are candidates in place and the decisions that voters make will depend on their evaluation of them and what each Party offers.

"It may come as no surprise that I hope that people will support Caroline Newton who is an excellent candidate.

"I have been pleased to support the Conservative Party over the past 16 years despite falling out with it on occasions.

"I said that I would stand down at this General Election in April 2023.

"My plans for the future have had to change due to suffering a stroke. In the short-term my focus is on continuing my recovery and then I will decide what next."