The city’s long-standing subway isn’t invincible as the MTA once again found out Monday.

In what the agency described on Facebook as a hit-and-run, the elevated train structure just south of the Freeman Street 2/5 station above Southern Boulevard in the Morrisania section of the Bronx suffered damage that afternoon.

“Initial reports are that it was a heavy duty vehicle, possibly a crane, but that investigation is ongoing,” the MTA said.

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MTA engineers responded to the station, where they determined that there was damage to a girder underneath the tracks. “While the area was safe for trains to operate, immediate corrective action will be necessary to repair the damage.” 

Trains were temporarily halted in the area during the assessment, and currently uptown 2 and 5 trains are passing through the area between Simpson Street and Freeman Street at slow speed – less than 10 mph – as a precaution, the MTA said, but future work will continue to impact service.

“Permanent repairs will be made at a later date. During this work, street closures will be required, which could impact Bx19 bus service in the area.”