Large chunks of concrete fell onto cars parked alongside Chicago Transit Authority tracks in the city’s Rogers Park neighborhood Thursday, according to officials.
Multiple cars sufffered damage, with massive pieces of concrete falling onto the vehicles near Estes and Glenwood.
CTA officials confirmed a portion of a retaining wall fell away from the viaduct structure near 7100 N. Glenwood early Thursday morning.
Witnesses said they heard a loud bang just after 4 a.m. and came out to find the crushed cars. Chicago police say that both cars that were damaged were no longer operable as a result.
One of the vehicle owners said they park their car there because they live across the street.
"We're still in shock. It's not like you got into and accident. It's just short of getting struck by lightning," said Megan Mateo.
Chicago police and CTA officials were at the scene and no injuries were reported.
The CTA said there are no structural issues with the viaduct and Red and Purple Line trains are operating normally.
"The concrete experienced 'spalling' - pieces flaking off" CTA said in a statement.
They noted that such "spalling" "happened with older concrete."
The debris was removed Thursday morning and officials said no further issues were found.