At least one person has been injured in an accident in northwest Harris County.

An 18-wheeler and a pickup truck collided at around 2:45 p.m. Tuesday on FM 529 at Greenhouse. We're told one patient was transported via LifeFlight to Memorial Hermann Hospital. No word on that person's condition.

Authorities are still on the scene investigating.

The eastbound lanes of 529 are closed near the intersection of Greenhouse.

We'll post more information here as it comes into the newsroom.