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DELRAY BEACH, Fla. — A husband failed in his frantic attempt to pull his wife off railroad tracks after she tripped, and she was killed by an oncoming train, police said.

The couple — William and Robin Landes — were walking home at around 9:30 p.m. ET Wednesday after eating dinner at a nearby restaurant in Delray Beach when they attempted to cross railroad tracks, according to authorities.

Police spokeswoman Dani Moschella said 62-year-old Robin Landes tripped as the train approached, reported NBC affiliate WPTV.

Witnesses told police they saw her 58-year-old husband trying desperately to pull her off the tracks, but he couldn't do it before the train hit her.