Metro-North's Harlem and New Haven lines were getting back to normal at midmorning Thursday after storm-related delays snarled the railroad's morning rush, officials said.

Both lines were back to running on time, with the exception of the New Canaan branch of the New Haven line, which was using buses to move commuters in both directions because of downed trees and wires, Metro-North spokeswoman Marjorie Anders said.

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The continuing presence of debris from fallen trees along the New Haven line was also stopping trains on the opposite side at certain stations, though they were running on time, Anders said.

Signal problems that had caused delays of about 20 minutes on the Harlem line early Thursday had been repaired, Anders said. Meanwhile, downed trees and wires had caused delays of up to 30 minutes on the New Haven line.

The Hudson line was on schedule all morning.

Full, on-time service was expected for the afternoon rush on all lines, including the New Canaan branch, Anders said.