The communications manager of Sheffield Hallam MP Jared O'Mara has resigned in a flurry of angry tweets published on the MP's own Twitter account.

In a thread, Gareth Arnold - a member of Mr O'Mara's constituency staff - accused him of showing "inexcusable contempt" for constituents.

"Jared, you are the most disgustingly morally bankrupt person I have ever had the displeasure of working with," was posted from Mr O'Mara's account., external

The Twitter thread continued: "Sheffield Hallam deserves so much better than you. You have wasted opportunities which people dare not to even dream of."

The thread told the MP to "call a by-election" and told Mr O'Mara to consider the Twitter posts as his "resignation".

Mr O'Mara, 37, quit the Labour party in July 2018 after being suspended over alleged misogynistic and homophobic comments posted online.

The BBC has asked Mr O'Mara to comment.

Train services on the line near Wakefield Westgate are being disrupted because of a lightning strike in the early hours of this morning.

Fewer trains are able to run on the section of track as there has been damage to the signalling system, with some services being cancelled.

Passengers travelling between Leeds and Wakefield Westgate are being warned to expect delays until about 11:00:

If you struggled to sleep last night, it might have been because of the thunder and lightning across the county.

This is what was happening in the skies above Yorkshire in the early hours:

Image source, JBsShots

Above is a brilliant picture of lightning in Beverley while the shot below shows lightning over houses in Leeds at about 03:00 this morning:

Image source, Danny Lawson/PA Media

Scarcroft in West Yorkshire was also affected, with the photo below showing lightning flashing across the sky:

Image source, Delagare

Meanwhile, the stunning shot below was taken by Stephen Smith in Huddersfield from his attic window:

Image source, Stephen Smith

If you have any photos of the weather from overnight, send them in to us.

BBC News Travel

If you're making a journey on the rails in Yorkshire this Wednesday morning, most services appear to be running to time - however there do seem to be some problems today.

Be aware that there's still some disruption on the East Coast Mainline after major problems along the route yesterday. Check the LNER website for the latest details, external.

Also, trains running through Wakefield Westgate may be delayed by up to 30 minutes due to lightning damaging the signalling system. Check the latest details from National Rail Enquiries here, external.

For all the latest live updates from the county's main railway stations, click on the links below:

• York Station, external
• Leeds Station, external
• Sheffield Station, external
• Hull Station, external
• Doncaster Station, external
• Wakefield Westgate, external
• Bradford Interchange, external
• Bradford Forster Square, external

There's still some disruption on the East Coast Mainline after major problems along the route yesterday.

Hundreds of passengers were stranded on trains after power lines were damaged near Grantham, with some passengers fainting when the lack of power cut off the air-conditioning.

Several services running through Yorkshire and Lincolnshire this morning have been cancelled.

It's the second power failure on the line this month.

Passengers who had tickets for trains yesterday can use them today, according to train operator LNER.

Yorkshire score the second-highest domestic T20 total ever in a 54-run win at Leicestershire, as Middlesex beat Surrey by 37 runs.

"Promising" professional boxer Tom Bell, 21, was shot through a pub window in January and later died in hospital.

An East Yorkshire train enthusiast has made a replica of one of the most usual pieces of rolling stock ever to grace a railway in Britain.

Phil Matheson has made a copy of one of the sail bogies which ran on the Spurn Military Railway in the first half of the last century.

The vehicles were wind-powered and are said to have reached speeds of up to 60 mph on a suitably breezy day.

A family of owls have been making themselves at home in a paddling pool.

There's disruption to trains in Yorkshire after damage to overhead wires on the East Coast Main Line for the second time this month.

The disruption comes after a similar incident on 10 July when all lines were blocked after damage to overhead wires, external:

While LNER have confirmed that the 15:45 service form Leeds to Kings Cross has been terminated at Doncaster.

National Rail say trains may be cancelled or delayed by up to 90 minutes, external and customers can use their tickets on "reasonable routes".

Police have found a cannabis factory worth about £1m in an East Yorkshire village.

Image source, Humberside Police

Officers discovered a "huge haul" of almost 2,000 cannabis plants in East Cowick, near Snaith, on Friday.

Humberside Police say the plants, which were discovered after a warrant was executed on Thorne Road, "will now be safely disposed of".

Vi Nguyen, 42, of no fixed abode, appeared at Hull Magistrates Court yesterday charged with being concerned in the production of cannabis and has been remanded into custody.

The family of a man who went missing from Wakefield more than six years ago are renewing their calls for help.

Image source, West Yorkshire Police

Kevin Judge went missing from Lupset in April 2013 after being dropped off by a taxi at his home. There have been no further sightings of him.

His family are calling for "closure", saying life has been "horrendous" since he was last seen.

Mr Judge's daughter, Lisa, said: "I believe someone out there may know something or at least have an inkling as to where he might be.

“I urge anyone out there to come forward as any piece of information, no matter how trivial it might sound, may lead to my dad's whereabouts.

"Me and my family need closure to this nightmare," she added.

The singer reached number one with 'Love Me Again' but has had a break from music due to his health.

Two polar bears at the Yorkshire Wildlife Park have been cooling off by hitting the water, as the temperature in Doncaster soars.

The South Yorkshire town is as hot as Havana in Cuba today, with 31C being the high:

Image source, David Roberts

Image source, David Roberts

Image source, David Roberts

The chickens, which lived on the grounds of Middleton Primary School, were attacked on Sunday night.

A major Hull bakery is to stop using palm oil from its entire range of bread.

Image source, Jackson’s Yorkshire’s Champion Bread

Jackson's has announced the "ethically-driven change", claiming its products are the first bread brand in the country to go palm oil-free.

The substance is linked to huge deforestation over the years, although Jackson’s says it only ever used palm oil from "a fully segregated sustainable source".

David Balmer, the firm's managing director, said: “While we’ve only ever used sustainable palm oil in our products, the people who buy our bread have demanded more."

The company said that across the food industry brands are becoming "increasingly alert" to the impact ingredients such as unsustainable palm oil can have on the environment.

But while many brands are backing sustainable options, environmental campaigners continue to highlight the devastation caused by unsustainable palm oil.

Jackson’s makes more than 250,000 bloomers and rolls each week at its bakery in Hull, with the palm oil-free products going on sale in new packaging to reflect the change.

York city centre has looked more like the French Riviera today, according to one person on the riverside.

This photo below was taken in the "baking hot summer sunshine", Garry Hornet said:

Image source, Garry Hornet

Whitby looks amazing, too, as this photo taken from the famous whale bones shows:

Image source, Sidney

And it's been blue skies and busy beaches at Scarborough too, with people enjoying 25C heat:

Image source, High Lions

Hundreds of people have been flocking to Ilkley Lido as they look to cool off in the summer sun.

These photos from a little earlier today show punters enjoying the heatwave.

The hot weather's expected to last until the weekend.

Image source, PA Media

Image source, PA Media

Image source, PA Media

Police officers says finding an abandoned flock of rare breed Hebridean sheep in a North Yorkshire field was "one of the more unusual situations" they've experienced.

Image source, North Yorkshire Police

A mix of rams, ewes and lambs were found earlier this month dumped in a field in Pannal near Harrogate.

PCSO Matthew Cockerill, who is part of North Yorkshire Police’s Rural Taskforce, said it's not known if the 32 animals have been stolen.

"It's very sad that a group of animals would be abandoned like this with no consideration for their safety and welfare," he said.

“We don’t know what circumstances could have led to the sheep being left in this way...but we hope we can find whoever's responsible and ensure the flock has a secure home for the future."

The sheep are now being looked after by a local farmer and police are appealing for anyone with information about them to get in touch.

Wakefield Labour MP Mary Creagh has given her take on Boris Johnson being set to become the UK's next prime minister: