The war between Donald Trump and Fox News is heating up in the US, with Trump tweeting that he would be boycotting the network because he’s being treated “very unfairly”.

Trump has been fighting with Fox News since the first Republican primary debate, when he objected to the moderator Megyn Kelly’s questions. Using his Twitter account, the billionaire businessman and Republican frontrunner Trump announced that “for the foreseeable future” he is boycotting Fox News.

.@FoxNews has been treating me very unfairly & I have therefore decided that I won’t be doing any more Fox shows for the foreseeable future.

— Donald J. Trump (@realDonaldTrump) September 23, 2015

A Fox News spokesperson responded to Trump’s boycott, telling CNN that Trump only started the boycott after Fox cancelled his scheduled appearance on The O’Reilly Factor. A screen shot of the email from Fox News to CNN:

 Trump released a statement about the boycott:

“Mr. Trump stands by his statement made earlier today. As a candidate for President of the United States and the definitive front runner in every poll, both nationally and state wide, including the just released poll in the state of Florida, Mr. Trump expects to be treated fairly. All you have to do is look at the tremendous ratings last night from the Late Show with Stephen Colbert, where Mr. Trump was the guest, or the ratings from both debates, to fully understand the facts.”