Police are still trying to determine the identity of a woman in her late 60s found last week in Bethpage, apparently unable to remember her name or where she lives.

Nassau County police said a passer-by found the woman lying on the ground on Adams Avenue at 9:40 a.m. Thursday.

The woman, speaking Spanish, later told authorities that she remembered getting on an express train at Grand Central Station, police said, but it was not clear whether she meant a subway or train, or how she had arrived on Long Island.

Police described the woman as being 65 to 70 years old, about 5-foot-3 with gray hair.

She wore a dark-gray fleece jacket, black fleece leggings, a pink long-sleeved shirt and flip-flops. She carried MetroCards and miscellaneous papers.

She was taken to St. Joseph Hospital in Bethpage where she remained Monday, police said.

Nassau police have alerted the NYPD in the matter.

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Detectives ask anyone with information about the woman to contact the Nassau County Police Department Missing Persons Squad at 516-573-7347 or call 911. All callers will remain anonymous.