A piece of felt used to pad joints near MBTA bridges fell to the platform of the Forest Hills commuter rail station on Wednesday, authorities confirmed.
The debris weighed less than a pound, said MBTA Spokesperson Joe Pesaturo.
The incident follows one in September at the same station, where a piece of concrete fell from the ceiling onto the platform.
“This debris is not concrete,” Pesaturo said in an e-mail Wednesday night.
Facilities personnel at the station noticed an area where the felt was missing, he said.
As a result, water was observed “coming down by the bridge joint,” Pesaturo said.
The area has been cordoned off.
A photo of the crumbled debris was posted by a rider who tweeted to @MBTA to report “multiple chunks of ceiling on the platform this morning.”
The agency tweeted back, asking for a specific location.
The incident is the second time this month MBTA riders have dealt with fallen debris at a station.
On March 1, a ceiling panel weighing more than 20 pounds fell at the MBTA’s Harvard Station, narrowly missing a rider. In response, the transit agency said it would inspect all the panels across the system.
The MBTA said it removed and replaced about 100 panels at the station, the Globe reported .
Claire Law can be reached at email@example.com . Follow her on Twitter @claire_law_ .