Jessica Kwong, pictured, has been fired after claiming Donald Trump would be spending Thanksgiving 'tweeting, golfing and more'

Newsweek has fired a political reporter whose story claimed Donald Trump would be spending Thanksgiving 'tweeting, golfing and more' - before the president spent the day serving turkey dinners to US troops in Afghanistan.

A story by political reporter Jessica Kwong was published on Thursday morning with the initial headline: 'How is Trump spending Thanksgiving? Tweeting, golfing and more.'

But the president made an unannounced visit to Afghanistan to greet US troops and meet with Afghan President Ashraf Ghani to discuss reopening talks with the Taliban.

The president's son Don Jr. slammed her coverage as 'fake news'.

But Kwong claimed it has been an 'honest mistake', and said she had submitted the story in advance before the trip was announced.

Deleting one of her tweets, she wrote: 'Deleting this tweet because it was written before knowing about the president’s surprise visit to Afghanistan-an honest mistake. Story has already been updated, as shown in the screenshot.'

Her story's headline was updated to read: 'How is Trump spending Thanksgiving? Tweeting, golfing — and surprising U.S. troops in Afghanistan.'

A note at the end of the story read: 'This story has been substantially updated and edited at 6:17 p.m. EST to reflect the president's surprise trip to Afghanistan. Additional reporting by James Crowley.'

Kwong told The Washington Examiner she has been told to write about what Trump would be doing for Thanksgiving. When it was apparent he had made the trip to Afghanistan Kwong says the editor had a new article written - but her original was not updated.

Jessica Kwong published this article Thursday morning with the initial headline: 'How is Trump spending Thanksgiving? Tweeting, golfing and more'

She was later forced to delete her original post on her story, after the president made an unannounced visit to Afghanistan to greet US troops and meet with Afghan President Ashraf Ghani to discuss reopening talks with the Taliban

President Donald Trump holds up a tray of Thanksgiving dinner during a surprise Thanksgiving Day visit to the troops on Thursday

But Don Jr. replied: 'It wasn't an "honest mistake" you tried to dunk on Trump and ended up dunking on yourself because you couldn't resist.

'Notice how there's never been a story that broke in Trump's favor & had to be corrected the other way? These aren't mistakes, they are a very consistent pattern.'

Trump himself had earlier retweeted his son's post calling the story 'fake news', writing: 'I thought Newsweek was out of business?'

A Newsweek spokesman told The Washington Examiner: 'Newsweek investigated the failures that led to the publication of the inaccurate report that President Trump spent Thanksgiving tweeting and golfing rather than visiting troops in Afghanistan.

'The story has been corrected, and the journalist responsible has been terminated. We will continue to review our processes and, if required, take further action.'

DailyMail.com has contacted Kwong and Newsweek for comment.

The president's son Don Jr. slammed the coverage as 'fake news'

Trump himself had earlier retweeted his son's post called the story 'fake news', writing: 'I thought Newsweek was out of business?'

Don Jr. said Kwong's article 'was not an honest mistake'. He added: 'Notice how there's never been a story that broke in Trump's favor & had to be corrected the other way?'

Trump made the unannounced visit Thursday, telling soldiers at Bagram Air Field: 'There is nowhere that I'd rather celebrate this Thanksgiving than right here with the toughest, strongest best and bravest warriors on the face of the Earth'

Kwong told The Washington Examiner she has been told to write about what Trump would be doing for Thanksgiving. When it was apparent he had made the trip to Afghanistan Kwong says she told her editor and a new article was written, but her original was not updated

Trump made the unannounced visit Thursday, telling soldiers at Bagram Air Field: 'There is nowhere that I'd rather celebrate this Thanksgiving than right here with the toughest, strongest, best and bravest warriors on the face of the Earth.'

'We flew 8,331 miles to be here tonight for one simple reason, to tell you in person that this Thanksgiving is a special Thanksgiving,' Trump said in his remarks. 'We're doing so well. Our country is the strongest economically it has ever been.'

The president landed at Bagram Air Field, the largest U.S. base in Afghanistan, in the cover of darkness early Thursday morning local time. The first lady did not join him. He made a surprise visit to Iraq last Christmas with Melania.

The White House went to great lengths to keep the visit a secret after his Christmas visit to Iraq was blown when Air Force One was spotted en route by an amateur British flight watcher.

President Trump enjoyed a belated family Thanksgiving dinner with (from left) Kimberly Guilfoyle, Donald Trump Jr., First Lady Melania Trump, and Eric and Lara Trump on Friday night

United States service members deployed to Bagram Airfield in Afghanistan applaud as President Donald J. Trump delivers remarks Thursday during a surprise Thanksgiving visit

Cell phones, hotspots and other devices emitting a signal were confiscated from reporters traveling with the president, who were not told the destination of the trip until Air Force One was in the air and on route.

The White House arranged in advance for the president's Twitter account to remain active during his travel. A Thanksgiving message was tweeted from it Thursday morning.

Trump spent last Thanksgiving enjoying a turkey dinner at his Mar-a-Lago estate.