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The Green Line TRAX service was restored Monday after a light-rail train derailed Sunday in South Salt Lake, injuring three people.

Utah Transit Authority crews used cranes and other heavy equipment earlier Monday to remove the train from where it went off the tracks just south of the Central Pointe TRAX Station, near 2100 South and 200 West, at 3:34 p.m. Sunday.

The cause of the crash was under investigation, though excessive speed on a curve was a possible factor. UTA spokesman Remi Barron said he hopes to have a preliminary cause in the next day or two.

"[Investigators] are looking at the video and a data recorder on the train," Barron said Monday. "They will analyze that and should be able to find out from why it went off the rails."

He said there were indications the train may have left the station too fast, but that was not confirmed.

Baron said that UTA's chief safety officer was coordinating, in a joint investigation, with State Safety Oversight, which is the representative for the Federal Transit Administration.

"The [National Transportation Safety Board] has contacted us and we have provided information to them," Baron added.

The train has been taken out of service due to damage, Barron said.

In all, 11 of the 14 people aboard were checked by paramedics Sunday, and three were transported to the hospital for treatment of minor injuries, Barron said.

He said he didn't know the names of the victims and hadn't been contacted by them.

The train derailed as it took a curve in the rail route toward the southwestern Salt Lake County course. TRAX operators usually take that section of tracks at 20 to 25 mph, UTA confirmed.

The derailment caused some serious delays Monday morning for northbound and southbound commuters on the Blue and Red lines. UTA officials also noted that both routes were using fewer cars, resulting in packed cars. As of 8:15 a.m., more than 100 people reportedly had clogged the Millcreek (3300 South) station platforms.

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