Closures are in place after debris fell from the ceiling onto a westbound lane of the Cross-Bronx Expressway near the George Washington Bridge around 8:30 a.m.

Gov. Mikie Sherrill said she has been briefed on the reports.

“The Port Authority is investigating the incident and will undertake any necessary repairs immediately,” Sherrill said in a statement Wednesday.

All westbound lanes leading to the bridge’s lower level are shut down until the roadway is determined to be safe.

"All westbound lanes leading to the lower level of the GWB will remain closed until this investigation is completed and the necessary repairs are done; we expect them to remain closed through rush hour this evening," the Port Authority said in a statement.

No injuries have been reported.

Officials said they received an incident report around 8:30 a.m. and have not released details about what caused the debris to fall.

Travelers headed to the 181st Street exit are being directed to the Jerome Avenue and Major Deegan exits, officials said. The 181st Street exit is closed as of Thursday afternoon.

The Port Authority urged motorists to plan for additional travel time and make alternative travel plans if possible.