Breaking news at WRAL.com:

The main library at the University of North Carolina at Chapel Hill and a Durham elementary school are closed at this hour as a result of some sort of possible contamination, authorities say.

Chapel Hill authorities tell WRAL that it is a “possible mercury scare,” at Davis Library, but that it is a minimal threat.

No one inside the library, however, is being allowed to leave. Police also say a man at the library is being decontaminated at this hour.

Oak Grove Elementary School in Durham is also closed for the day. Parents received a notification from an automated call system of a possible mercury contamination at Oak Grove Elementary School. …