The westbound lanes of I-76 near Mifflin Street in South Philadelphia are closed due to police activity on Tuesday night.
NBC10 was at the scene to find police at the scene, with traffic being directed off the westbound side of the Schuylkill Expressway onto Greys Ferry Avenue.
What led to the investigation and road closure is not immediately clear, but NBC10 is trying to learn more.
No injuries have been reported and no estimate as to when the road will reopen has been provided.
This is a developing story; check back for more updates.