Service was suspended in both directions between Brentwood and Ronkonkoma for about 75 minutes during Wednesday’s morning rush hour as police investigated the report of a suspicious package at the Central Islip station, the Long Island Rail Road said.

A spokesman for the commuter service said Suffolk County police responded, inspected a backpack that was left unattended at the station and determined it was not a threat.

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Service was restored about 10 a.m.

The report of a suspicious package at the station came in at 8:45 a.m., with service suspended on the Ronkonkoma branch shortly after, spokesman Aaron Donovan said.