CHICAGO (CBS) — Mechanical problems caused “extensive delays” on Metra’s Rock Island District line during the morning commute Wednesday.

Inbound train No. 600, scheduled to arrive in Chicago at 6:04 a.m., was stopped shortly before 6 a.m. near 99th Street due to the mechanical problems, according to Metra. Trains were operating ahead of train No. 600 to accommodate commuters throughout the line.

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All inbound Rock Island Beverly Sub-District trains were operating with extensive delays, the transit agency said. Specifically, inbound train No. 602, scheduled to arrive in Chicago at 6:47 a.m., was operating at least 56 minutes behind schedule.

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Passengers were urged to listen to platform announcements for the location of trains on the Beverly Sub-District.

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