A bizarre Big Apple mystery deepened as another “mole person” was caught climbing out of a manhole early Monday — this time in Queens, cops said.

The unidentified nightcrawler was spotted stepping out of the manhole at Juniper Boulevard South and 74th Street in Middle Village just after 4 a.m., prompting an observer to call 911, according to police.

The underground diver — believed to be in his 20s and last seen wearing a red and black bandana — ran off with four other men who were surrounding the sewer, law enforcement sources said.

Several individuals emerged from a New York City manhole in May at the intersection of McDonald Ave. and Colin Place in Gravesend. Obtained by NY Post

It’s not known if the other men had also climbed out of the manhole.

The puzzling incident happened just weeks after a trio of headlamp-wearing “mole people” was filmed popping up out of a manhole near Manhattan’s bustling Penn Station and Madison Square Garden.

Two months earlier, two separate caught-on-camera sightings of men emerging from manholes in Williamsburg and Gravesend raised citywide concerns.

A crew of seven people were filmed emerging from this Brooklyn sewer hole in May. Michael Nagle for NY Post

An investigation found that those involved in the strange incidents appeared to be scavenging for anything of value that inadvertently made its way into the city’s sewer system, sources previously told The Post.