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WHITEMARSH TOWNSHIP, Pa. (CBS) — Homicide detectives are investigating after the bodies of two elderly people were found outside a home in Whitemarsh Township on Tuesday. The Montgomery County District Attorney’s Office says police and medics were called to the scene on the 500 block of South Bethlehem Pike around 11 a.m.

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The DA’s Office says a United States Postal Service carrier found the dead man and woman outside of the home.

The Hey Diddle Diddle daycare, which has two buildings a few houses down from the home, was placed on lockdown along the Upper Dublin School District and Germantown Academy.

All of the lockdowns were lifted after about an hour.

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It’s not known yet how the victims died. Their identities have not been released. An autopsy is scheduled for Wednesday morning.

Authorities are advising people to avoid the area.

The Montgomery County Detective Bureau and the Whitemarsh Township Police are conducting a joint investigation.

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If anyone has any information about these deaths, please call Whitemarsh Township Police at 610-825-6530 or the Montgomery County Detective Bureau at 610-278-3368.