ARLINGTON HEIGHTS, Ill. (STMW) — Outbound trains on the Metra Union Pacific Northwest Line are stopped near northwest suburban Arlington Heights due to a train fatally striking a pedestrian there Friday afternoon.

Train No. 631, which left the downtown Ogilvie Transportation Center about 4:45 p.m., struck the person about 30 minutes later near the northwest suburban Arlington Heights station, Metra spokesman Michael Gillis said. It was not scheduled to stop there, but remains there as the accident is investigated.

It had been scheduled to arrive at McHenry at 6:02 p.m.

The No. 631 is expected to be delayed up to 90 minutes, the Metra website said, and several other trains — Nos. 635, 629, 633, are stopped behind it. Inbound trains No. 654, 656, and 660 are also delayed up to 45 minutes due to the accident.

Gillis did not know the age or gender of the person killed.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2012. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

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