Liberal Democrat MP Don Foster will stand down at the next General Election, The Bath Chronicle reported.
The MP for Bath said he had taken the "very difficult decision" to step aside "after what will have been 23 wonderful years".
He wrote on Twitter after the announcement was leaked:
Been a pleasure to represent the people of Bath for over 20 years. Important to focus on the next 17 months now
The weir in Bath, Somerset is barely visible under the swollen River Avon today:
On Tuesday November 19 police arrested a Bath man on suspicion of the murder of Melanie Hall.
The 44-year-old was arrested at his home in the city at around 8.30am and was questioned by detectives a police station in Bristol.
Melanie's parents Steve and Pat Hall were informed.
Police also searched a house in the Roundhill Park area of Twerton as part of the on-going investigation.
The man was released on bail on the evening of November 20.
A man has been arrested on suspicion of the murder of a university graduate whose remains were found near a motorway four years ago.
The 44-year-old was arrested at his home last week as part of the investigation into the death of 25-year-old Melanie Hall.
Miss Hall, who worked at the Royal United Hospital in Bath, vanished after a night out at Cadillacs nightclub in Walcot Street, Bath, in June 1996.
On October 5, 2009, human remains were found by the side of the M5 by a workman who was clearing vegetation on the slip road at junction 14, near Thornbury, south Gloucestershire.
Two days later, the remains were identified as those of Miss Hall, from Wiltshire.
More than 7,000 properties in the Bristol and Bath area have reportedly been left without power as a severe storm battered England and Wales overnight.
Widespread flooding hit southern parts of the country as rain and winds of almost 100mph arrived from the southwest.
Trees have been brought down by high winds, damaging properties and power cables, while a number of roads are impassable due to floodwater.
The coroner at the inquest of a four-year-old girl who died after a wall collapsed on her has recorded a verdict of accidental death.
Surranna Stonestreet died in the back garden of her home in Bath in May. Her father was demolishing the garden wall when she became trapped underneath.
See ITV West Country for more on this story.
A spokeswoman for South Western Ambulance Service said the boy hit by an ambulance in Bath is now in a "stable condition".
"He was transferred to Frenchay Hospital because he is suffering from head trauma and the hospital has a specialist major trauma unit," she added.
The schoolboy who was hit by ambulance in Bath who was thought to be 14 is now believed to be 10.
He was taken to the city's Royal United Hospital after the accident at the junction of London Road and Snow Hill near the River Avon, she added.
Due to the serious condition of the patient, police gave permission for the ambulance to leave the scene to take him to hospital.
Clearly our primary concern is for the patient and his family - senior executives from South Western Ambulance Service have travelled to Bath and will offer to meet with the family.
We are also ensuring the crew involved are fully supported.
We are also working closely with the police to ensure the circumstances surrounding this serious incident.
A schoolboy who was hit by an ambulance in Bath has been transferred to Frenchay Hospital in Bristol. He was initially taken to the Royal United Hospital in Bath. South Western ambulance service say he suffered from 'serious head injuries'.
A schoolboy was hit by an ambulance on his way home from today. Domenica Oatley, who works at the community centre across the road witnessed the aftermath of the crash. She took in the boy's friends until their parents arrive.