CHARLOTTESVILLE, Va (CBS19 NEWS) -- A University of Virginia Emergency Management tweet said there were fire crews investigating a situation at the Fontaine Research Park on Wednesday.

The tweet was sent out around 5 p.m.

No fire or smoke was visible, but the message urged people to avoid the area while crews were conducting an investigation on the building's fourth floor.

Another tweet was sent out a half hour later notifying the public the situation was stable.