ITV News has obtained footage of a man "shoving" the Prime Minister at an HS3 launch event in Leeds.
As David Cameron left Leeds Civic Hall, the man rushes up and appears push to him.
Security officers then seize the man and hurry the PM into a waiting car.
Mr Cameron was in West Yorkshire to announce proposals for a third high-speed rail line in the north, known as HS3.
The Prime Minister has been "shoved" by a protester at the HS3 launch in Leeds, according to reports.
ITV News Deputy Political Editor Chris Ship has tweeted that a journalist at the event at the Civic Hall in Leeds reported that Mr Cameron was "pushed" by a protester before police officers stepped in.
Championship side Leeds United has confirmed the sacking of coach Darko Milanic after just 32 days in charge of the club.
The club said Neil Redfearn will take charge of first team training on Monday morning and president Massimo Cellino apologised to the fans for the team's recent poor results.
BREAKING: Club president Massimo Cellino says: "I want to apologise to the supporters, they deserve better results." #lufc
Milanic was appointed on 23 September but did not win any of his six games in charge.
For more on this story visit the ITV Sport website.
Leeds president Massimo Cellino's court trial in Sardinia for tax evasion has been delayed.
The trial was due to take place on Thursday, but the judge has had to step down due to a conflict of interest.
Judge Dr Sandra Lepore convicted Cellino for failing to pay tax on his yacht Nelie in March and cannot hear the second case involving another yacht, Lucky 23.
Cellino was fined around £400,000 for the earlier conviction.
The appeal judge who overturned that decision ruled that if Judge Lepore confirmed in her written report that the tax evasion in the Nelie case had been a deliberate act of dishonesty then Cellino would fail the League's 'owners and directors' test.
Judge Lepore has since stated there was "elusive intent" and "Machiavellian simulation" by Cellino and the League is under mounting pressure to force him to sell the club.
The passion stirred up by the Yes campaign in Scotland has inspired similar feelings among some in northern England's larger cities.
In Manchester, Leeds and Newcastle, there is a growing sense that they too, should be given more powers to self-govern.
ITV News Diplomatic Correspondent John Ray reports:
A man has been found guilty of the attempted murder of a police officer in Leeds.
PC Suzanne Hudson was shot at point blank range by James Leslie with a sawn-off shot gun.
She suffered serious injuries to her face, neck and hand. The incident took place after PC Hudson and a colleague went to Leslie's flat in Leeds one night last December.
Leslie is due to be sentenced in October.
A pre-season friendly between Leeds United and Viitorul Constanta was called off after the Romanian side failed to turn up for the game.
The West Yorkshire club tweeted:
Our game with Viitorul Constanta has been forced to be called off due to the Romanian side not turning up at the ground #lufc
Leeds, who play in the second tier of English football, said they would still play a friendly against themselves to ease the disappointment of fans who had travelled to watch the match.
United will now field two Leeds XIs that will play against eachother in the absence of an opposition for the travelling supporters #lufc
DH: "as of yet the Romanians haven't turned up but we are ready to play. We have officials, match kit and we are here." #lufc
The game against Viitoral, owned by Romanian football legend Gheorghe Hagi, was due to take place in northern Italy.
UPDATE: Missing nine-year-old Simon Kubalik from #Leeds has been found safe and well. Thanks to all who shared our appeal for information.
Police are searching for a 9-year-old boy who has gone missing in Leeds.
Simon Kubalik was last seen yesterday evening (Friday July 4, 2014) around 9pm close to Hovingham Primary School, where he was attending a youth club.
He is described as small with brown skin and black hair. He was wearing a blue body warmer, black jacket, jeans and Nike shoes.
"We have been carrying out extensive enquiries since Simon was reported missing in the early hours of this morning (Saturday July 5, 2014) and are working closely with his family and friends in checking areas and addresses he is know to frequent.
Given his age it is obviously extremely concerning that he has been missing overnight and we would urge anyone who has seen him or has information about his current whereabouts to call us immediately on 101"
Detective Inspector Mark Swift, Leeds CID
A new high-speed rail connection and improved roads between England's northern cities could help create an economic powerhouse to rival London, George Osborne will say today.
He will use a keynote speech to say an upgraded, high-speed link between Manchester and Leeds should be considered as part of the review of the second phase of the HS2 project.
The Chancellor will say he wants travelling through towns and cities in the northern belt to be as easy as moving around a major global metropolis as part of a plan to help them "take on the world".
Under current plans the £50 billion HS2 high-speed rail project will link London to Birmingham in its first stage, before creating a Y-shaped network with lines to Manchester and Leeds by 2032/33.
But concerns about connectivity between the northern cities were raised in the report by HS2 Ltd's chairman Sir David Higgins earlier this year.