NEW YORK (CBSNEwYork) — Subway riders faced another morning of delays and crowded platforms during the height of the morning rush hour.

Signal problems at 42nd Street and Bryant Park in Manhattan disrupted service on the A, B, C, D, E, F, G and M trains around 8:30 a.m. Monday.

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Earlier, there was no B train service between Norwood-205th Street and Coney Island-Stillwell Avenue and no M trains between Forest Hills-71st Avenue and Broadway Junction.

Service resumed with extensive delays about an hour later.

“We apologize for this morning’s delays and we are returning to normal service,” the MTA said in a statement. “Crews repaired a circuit breaker and signal issue.”

Commuters took to Twitter to report stuck trains, crowded platforms and long wait times.

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One photo showed the line for the Roosevelt Island Tramway wrapping around the corner because of the subway problems.

“It’s pretty frustrating every single day it’s something different, but we just have to make do, because it’s the only way to get here,” said Brianna Harrison of Bed Sty.

Harrison told CBS2’s Jessica Borg she was going to be nearly an hour late for work.

The Riders Alliance — a commuter advocacy organization — says the delays this morning are more proof that the subway system needs to be overhauled.

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The group is calling on Gov. Andrew Cuomo to put forth a detailed plan on how to modernize the system and how it’ll be paid for.