Police await test results on Princeton devices

Investigators in Princeton still don't know what was in those three suspicious packages found there Wednesday, but they're treating them as bombs until proven otherwise.

The discovery of the devices prompted schools to close and explosives experts to comb the town of 4,500 with bomb-sniffing dogs. They gave the all clear Wednesday afternoon and students returned to class Thursday morning.

Police Chief Brian Payne says each package contained some sort of bottle that was heavily wrapped was tape with wires running into it. He says if it is a hoax, someone went to a lot of trouble to make it look authentic.

Payne says investigators hope to get the results of laboratory tests on the devices by Thursday afternoon. He says they are pursuing several leads.