A worker is in serious condition after falling onto a Manhattan scaffold Tuesday morning.

City fire officials say it happened just before 10 a.m. outside 110 West 38th Street in Midtown.

Witnesses at the scene tell NY1 the worker fell at least one story onto the top of a scaffold that was set up at a construction site.

The worker was transported to Bellevue Hospital.

The extent of the person's injuries were not immediately known.

An investigation is ongoing.