Fire erupted on the rooftop of New York City’s (NYC) Trump Tower in Midtown Manhattan on Monday morning. As a result of the fire, three people were injured, but all of the injuries were non-life threatening.

According to the details provided, the fire was reported early on Monday morning, before the day’s rush hours began. Someone called from their phone to report the incident to the fire department. The New York Fire Department (NYFD) arrived on the location promptly and began tackling the fire.

It was reported that the entire fire was contained within one hour and 15 minutes. One firefighter was hospitalized with non-life threatening injuries whereas two other people received minor injuries that were treated at the scene. One of the injured was a building worker, whose injuries were thought to be serious initially.

Eric Trump, one of the president’s sons, said on Twitter that it was a small electrical fire in the cooling tower on the building’s roof.

“The New York Fire Department was here within minutes and did an incredible job,” said the younger Trump. “The men and women of the #FDNY are true heros and deserve our most sincere thanks and praise!”

The Fire Department said the fire was not inside the building, but on top of it.

“We had flames coming out of the vents. No smoke condition or fire was on the inside,” Manhattan Borough Commander Assistant Chief Roger Sakowich said on Twitter.

The cause of the blaze is being investigated by the city fire marshal, a department spokesman said.

US President Donald Trump was in Washington at the time of the incident. Before he became the president, Trump’s primary residence used to the in the same Trump Tower.