New York City firefighters have reportedly been banned from hanging photos of President-elect Donald Trump in firehouses, on fire trucks and on the T-shirts they wear to work.

Following Trump's surprising election victory, FDNY commanders sent out a directive this week urging firefighters to 'remain out of the political scene,' officials told the New York Post.

It was reportedly triggered by complaints the department received after a fire truck from Engine 276 in Brooklyn was driving around with a Trump mask on its grille.

New York City firefighters have been banned from hanging photos of President-elect Donald Trump in firehouses, on fire trucks and on the T-shirts they wear to work. File photo of a fire truck leaving a fire house in New York above

The department had also received a complaint about material posted in a firehouse, a source said.

'Posting of these materials is not in compliance with Regs,' the message read. 'Please make sure apparatus and quarters are clear of this material.'

The department maintains the directive was not aimed at any particular candidate and was just restating longstanding FDNY policy of keeping politics out of the workplace.

'The message, specifically to its time, was to remain out of the political scene and out of the political field,' FDNY spokesman Jim Long told the New York Post.

However, fighters who spoke off camera to NY1 told the station the message they received was that photos of Trump are not permitted.

The move has angered some members of the department who noted that photos of past presidents hang in firehouses.

Trump was elected America's 45th president in an astonishing victory last week

FDNY TELLS FIREFIGHTERS TO STAY OUT OF POLITICS To: All Units. Today I received a call from Boro and Division in regards to material posted about the election. One Unit was driving around with mask of Trump on front of rig and they had another complaint about material posted in Firehouse. Posting of these materials is not in compliance with Regs. Please make sure apparatus and quarters are clear of this material. We do not want to see anyone get in trouble for this. Advertisement

'They have pictures of George Bush standing on the World Trade Center pile with a megaphone,' an FDNY source told the post.

The source added that the department posts pictures all the time, including when President Barack Obama visits firehouses.

'The firehouse is supposed to be a symbol of America. That's hard to believe when you can't post a picture of the president,' one firefighter, who asked to remain anonymous, told the Post.

Jim Slevin, president of the Uniformed Firefighters Association, said honoring and respecting the office of the president is an 'American tradition.'

'What is quite ironic, is that the president-elect’s photo will soon hang in every federal building, on military bases and U.S. Embassies across the globe,' he told NY1.