Five people were hurt when a boom truck collapsed in Manhattan Tuesday afternoon, officials said.

The collapse happened just before 2:30 p.m. at 3880 Ninth Ave. near West 207th Street in Inwood, the NYPD said.

Inspectors with the city Department of Buildings determined that a knuckle boom truck was lifting a load of plywood on the second-floor deck when the truck's boom fell, the agency said.

The department said that weather was likely not "an immediate factor" in the incident.

The collapsed boom arm will remain at the construction site until after heavy rain and strong winds subside Wednesday, according to the agency.

A knuckle boom truck is a piece of heavy equipment with a crane attached to it that is designed to lift heavy loads in tight spaces.

One of the victims Tuesday sustained serious injuries that are not life threatening, while four sustained minor injuries, according to the FDNY.

No one was trapped under debris following the collapse, the NYPD said.

The Department of Buildings said all of the people injured were workers.

The department also said they have issued a partial stop work order at the site in the area where the collapse occurred.

Two complaints found on the DOB website issued today note "unsafe crane operations" and "site conditions endangering workers."

The DOB website also shows a separate complaint from last month that says a worker was hit on his left shoulder by an aluminum beam while a coworker was framing a sub-cellar floor. Upon request to see the orientation and pre-shift safety log, the department says both items were missing information.

The agency issued a summons for condition, and to provide and maintain orientation and pre-shift safety meetings as required.