Ferguson Township police are investigating a Tuesday robbery at SPE Federal Credit Union off Science Park Road.
Chief Chris Albright said an individual entered the credit union at about 4 p.m. and demanded money, received cash and left on foot.
A green package was left by the man on the counter, and credit union employees activated a silent alarm to alert police. Employees were told that the package could be detonated from 2 miles away, Albright said. Authorities are waiting for bomb squads to investigate the package.
Albright said a bomb threat at Wal-Mart off North Atherton Street was made shortly before the robbery. Wal-Mart was evacuated late Tuesday afternoon, and was still closed to customers as of 5:25 p.m. The two cases could be connected, he said.
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Employees told police the man was 6 foot tall and wearing a purple dress, a mask and ivory hood.
Albright said the man fled toward Circleville Road.
Officers, including state police troopers, were dispatched around 6:20 p.m. to follow reports that the suspect was headed toward Tom Tudek Memorial Park. The public was evacuated from the area, as officers in SWAT gear could be seen making a thorough sweep through the park as heavy rain fell in the area.
Penn State police also responded to the scene.
This story will be updated