Law enforcement sources told The New York Post on Monday that a possible explosion was reported at New York City's Port Authority bus terminal on 42nd Street.

First responders have reportedly arrived on the scene, and a bomb squad has also been deployed.

Michael Ventrice, meteorologist at The Weather Channel, tweeted on Monday that NYPD sources confirmed a bombing.

"Sources in NYPD are saying there was a confirmed bombing in #PortAuthority NYC and that shots were fired. Praying for NYC," Ventrice tweeted.

Sources in NYPD are saying there was a confirmed bombing in #PortAuthority NYC and that shots were fired. Praying for NYC

— Michael Ventrice (@MJVentrice) December 11, 2017

The NYPD is responding to reports of an explosion of unknown origin at 42nd Street and 8th Ave, #Manhattan. The A, C and E line are being evacuated at this time. Info is preliminary, more when available. pic.twitter.com/7vpNT97iLC

— NYPD NEWS (@NYPDnews) December 11, 2017

The Post reported that several people were injured after a device was reportedly detonated.

One person is reported to be custody after the device partially detonated inside a tunnel, according to the Post.

White House press secretary Sarah Huckabee Sanders confirmed that President Donald Trump was briefed on the unfolding situation.

".@POTUS has been briefed on the explosion in New York City," Sanders tweeted.

.@POTUS has been briefed on the explosion in New York City

— Sarah Sanders (@PressSec) December 11, 2017

The New York Police Department via Twitter reported preliminary information that no injuries occurred besides that of the suspect, who remains in custody.

"Update regarding explosion at 42nd St and 8th Ave, in subway: One male suspect is in custody. No injuries other than suspect at this time. Avoid the area. Subways bypassing #PortAuthority and Times Square Stations. Info is preliminary," the tweet read.

Update regarding explosion at 42nd St and 8th Ave, in subway: One male suspect is in custody. No injuries other than suspect at this time. Avoid the area. Subways bypassing #PortAuthority and Times Square Stations. Info is preliminary. pic.twitter.com/bEAdjq8mYc

— NYPD NEWS (@NYPDnews) December 11, 2017

The New York City Fire Department later tweeted, "Update: A total of 4 injuries reported at the scene of an explosion at Port Authority. All injuries are non-life-threatening."

Update: A total of 4 injuries reported at the scene of an explosion at Port Authority. All injuries are non-life-threatening

— FDNY (@FDNY) December 11, 2017

New York City Mayor Bill de Blasio, New York Governor Andrew Cuomo, NYPD Commissioner James O'Neill updated New Yorkers on the incident — which was determined to be an attempted terrorist attack. The suspect is 27-year-old Akayed Ullah from Bangladesh, who was living in Brooklyn. Ullah sustained injuries as a result of detonating the device.

#HappeningNow: @NYCMayor, @NYPDONeill, @FDNY, @NewYorkFBI and @NYGovCuomo update New Yorkers on explosion at #PortAuthority https://t.co/YahqkiviX1

— NYPD NEWS (@NYPDnews) December 11, 2017

This is a breaking story and updates will added as events warrant.