Durham Police say they are treating the incident as unexpected and enquiries are ongoing.
The doctor told the BBC's Laura Kuenssberg he could no longer look NHS colleagues and patients in the eye and stay as a Conservative.
Dr Poulter, who works part time as a doctor, says he struggled to "look my NHS colleagues in the eye".
A 58-year-old man has been charged with attempted murder after an incident on Friday morning.
A chief constable said reactions to an attack that saw two teachers and a pupil hurt was impressive.
The presenter thanked everyone for their "kindness and good wishes" and is home with his family.
The presenter thanked everyone for their "kindness and good wishes" and is home with his family.
Peter Smith, 64, was 10 metres off the shore when he was attacked by a bull shark, a local official says.
The first minister's appeal to find "common ground" is rejected by the Scottish Conservatives as "humiliating and embarrassing".
The first minister's appeal to find "common ground" is rejected by the Scottish Conservatives as "humiliating and embarrassing".
The abuse suffered by eight girls in West Yorkshire has been described as "abhorrent in the extreme".
The abuse suffered by eight girls in West Yorkshire has been described as "abhorrent in the extreme".
The lost Lego piece was one of millions which fell off a cargo ship and into the sea in 1997.
This "OMG" moment for Humza Yousaf is latest in a long line of nasty surprises for a party that has been in decline.
Dr Tijion Esho is struck off after admitting an improper emotional relationship with a patient.
Dr Tijion Esho is struck off after admitting an improper emotional relationship with a patient.
Dr Tijion Esho is struck off after admitting an improper emotional relationship with a patient.
Customers claim they have lost bets because of "inaccurate" decisions they cannot appeal.
Customers claim they have lost bets because of "inaccurate" decisions they cannot appeal.
Police confirm the death of a man and eight people needing hospital treatment in north Devon.
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