MANHATTAN — The upper level of the George Washington Bridge reopened Thursday night after being closed for well over 90 minutes due to police activity caused by what police are calling a “hoax device.”

Following a prior closure, all lanes of the George Washington Bridge upper level have reopened in The Bronx and Manhattan. Expect residual delays. Multilingual & ASL Link: https://t.co/HuA8o4rqF7. — NYCEM – Notify NYC (@NotifyNYC) August 23, 2019

The lower level in both directions was reopened after delays of about a half hour.

The NYPD said it’s a bomb threat, but the investigation is being handled by the Port Authority Police Department. The PAPD has called in the Bergen County Bomb Squad.

There’s a suspicious package on the upper level of the bridge, a Port Authority spokeswoman said.

The upper level was closed around 9:30 p.m. The lower level was closed around 10:20 p.m.

Authorities gave the all clear just after 11 p.m.

Commuters were not happy about the delay.

Both levels are closed! This is ridiculous. No signs or anything and we still don’t know what’s going on. — Chanty (@ChantalAlexa_) August 23, 2019

“This is ridiculous,” a commuter tweeted. “No signs or anything and we still don’t know what’s going on.”

“What is the police activity? Is my safety at risk? And how long can I expect to be stuck in the middle of this bridge? This is unacceptable,” one person tweeted.

What is the police activity? Is my safety at risk? And how long can I expect to be stuck in the middle of this bridge? This is unacceptable. — Peanuts & Crackerjacks 101 (@Pranuts1) August 23, 2019

“We should not have to live in fear of bombs on the road going home every night,” another commuter tweeted.

We should not have to live in fear of bombs on the road going home every night. I’m at the @PANYNJ_GWB for over 1hr a few feet before a bomb squad trying to figure out a suspicious package. We need to stop this violence! Let’s #SaveLives and #SaveThePlanet ! We have hearts ♥️s! pic.twitter.com/rNdCVDv8QJ — Shazia Mitha, AG-ACNP-BC, RN (@MITHASHAZIA) August 23, 2019

The bridge, which spans the Hudson River, is considered one of the busiest in the world.