Federal officials on Monday would not provide the location of James “Whitey” Bulger, who was rushed to a Boston hospital a day earlier after complaining of chest pains.

A spokeswoman for the US attorney’s office said she could not discuss a defendant’s health condition.

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Bulger, 83, was brought to the Boston Medical Center at 1:48 a.m. Sunday, according to fire officials in Plymouth, where he is being held.

Bulger has for decades suffered from a common ailment that requires him to take medications to treat high blood pressure and improve blood flow to the heart.