MTA police investigate after a person struck was struck by...

MTA police investigate after a person struck was struck by a train at the Floral Park LIRR station. Credit: Howard Schnapp

Service on three of four Long Island Rail Road branches is back to near-normal Tuesday after an early-morning incident involving a person being struck by a train in Floral Park caused significant rush-hour delays, officials said.

The official MTA website is reporting service is "on or close" to normal on the Ronkonkoma, Hempstead and Oyster Bay branches after the earlier cancellations and delays.

Officials said there were minor delays on the Babylon Branch due to the earlier police activity, as well. The branch was not initially affected.

Planned service on the Port Jefferson Branch, which had been affected by the train strike, has buses replacing trains both Tuesday and Wednesday between 10 a.m. and 4 p.m., officials said. That scheduled track work involves ultrasonic rail testing using the Sperry Rail Car to inspect for rail defects. The service replacements are between Huntington and Port Jefferson.

The LIRR said MTA Police are investigating the morning situation which officials said involved "a trespasser" being struck by a train at about 6:35 a.m.

Officials still have not released other details.

Initial delays were up to 60 minutes with some trains being canceled. New York City Transit cross-honored tickets at No. 7 train stops at Woodside and Hunterspoint Ave. until about 9 a.m., according to the LIRR's official Twitter feed.

Check back for updates on this developing story.

Nassau County Executive Bruce Blakeman's plan to deputize gun-owning county residents is progressing, with some having completed training. Opponents call the plan "flagrantly illegal." NewsdayTV's Virginia Huie reports. Credit: Newsday Staff; WPIX; File Footage

'I don't know what the big brouhaha is all about' Nassau County Executive Bruce Blakeman plan to deputize gun-owning county residents is progressing, with some having completed training. Opponents call the plan "flagrantly illegal." NewsdayTV's Virginia Huie reports.

Nassau County Executive Bruce Blakeman's plan to deputize gun-owning county residents is progressing, with some having completed training. Opponents call the plan "flagrantly illegal." NewsdayTV's Virginia Huie reports. Credit: Newsday Staff; WPIX; File Footage

'I don't know what the big brouhaha is all about' Nassau County Executive Bruce Blakeman plan to deputize gun-owning county residents is progressing, with some having completed training. Opponents call the plan "flagrantly illegal." NewsdayTV's Virginia Huie reports.

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