Update: We have discredited the suspected Tumblr account connected to the Chelsea explosion.

Police are “vetting” a Tumblr account that surfaced early Sunday taking credit for the Chelsea bombing — and threatening further action, a police source told The Post.

“I’m the NY Bomber,” the disturbing entry said. “This is[/] will be my manifesto.”

The posting is one of several that is being “looked at” by investigators, another law-enforcement source said.

It was taken down early Sunday afternoon.

FBI Assistant Director William Sweeney declined to comment on the postings during a press conference Sunday afternoon.

The unconfirmed account — which unfolds under a billowing rainbow flag and a profile picture of a similar LGBT pride flag emblazoned with the words “What’s wrong with homosexuality?” — has only two entries, both of which read as calls to violence.

The first entry, entitled “Manufacturing Test Explosives,” explains “I did it because I cannot stand society. […] I cannot live in a world where homosexuals like myself as well as the rest of the LGBTQ+ community are looked down upon by society.

“This is not the end,” the post continues. “This is just the beginning. I will be remembered. I will make a difference. I will eliminate my targets before it is too late.”

The chilling entry is accompanied by the hashtags “#newyork #bombing #lgbt #lgbtpride #equality #thebeginning.”

“I don’t know exactly how I feel about taking human lives,” the second post, Taking a Human Life, starts.

“However, what I do know is that If I don’t do what needs to be done nobody will pay attention. LGBTQ+ people are much more likely to commit suicide than straight cisgendered people,” the self-proclaimed, unconfirmed bomber writes. The term “cisgendered,” means someone who’s biological sex at birth conforms with their gender identity.

“It seems that nobody cares, however what if people from the LGBTQ+ community started lashing out in response to the violence and oppression we face with violence and possibly oppression? I’m sure that would give people a reason to not stand by while so many people are being oppressed.”

“I suppose I’m just going to have to move forward knowing that what I am doing had a purpose and will in fact make a difference. I’ll keep you all posted.”

The account owner also appears to lash out at Trump, writing, ” I am not going to stand by while there is inequality in my country such as the racism being seen in white police officers all over the country.”

“I am not going to live in a country where it is OK to have a misogynist, xenophobic, racist Islamophobic, republican candidate running for President of The United States!” the tirade continues.

The explosion–believed to be the product of a bombing rocked 131 W. 23rd Street around 8:30 p.m. Saturday evening in a construction dumpster outside The Townhouse Inn of Chelsea.

A second device, described as a pressure cooker, was discovered and removed by the bomb squad from 135th W. 27th Street.

A third device was investigated but determined to simply be a discarded suitcase sitting atop a pile of trash.