Authorities say a man from Pennsylvania has been charged with making threats against Temple University and its police department as he was buying ammunition in a Walmart store.

Patrick Buhler, 29, was arraigned Saturday on misdemeanor terroristic threats and harassment counts.

Authorities in Bucks County allege Buhler talked to a customer Wednesday in the Tullytown Walmart about security at Temple University and said the customer would "see something on the news" soon.

Authorities said he later told investigators that the comments were a mistake and he didn't know why he made them.

Court documents don't list a defense attorney, and a message left at a number listed for Buhler wasn't immediately returned Sunday.