The mountain lion was spotted on McMillan Road on the Berkeley Lab campus

Update, 2:31pm: Authorities have determined that the mountain lion has moved on, Lab staff who had been told to shelter in place have been given the all-clear, and McMillan Road has been reopened, according to Lab spokesperson Jon Weiner.

Original story: A confirmed mountain lion sighting has closed part of McMillan Road on the Berkeley Lab campus in the Berkeley hills today, and employees in several nearby Lab buildings are being asked to shelter in place until told otherwise.

The Lab sent an internal email to staff at 1:47 pm today alerting them of the situation. It said that the UC police were on the scene and California Fish & Game was also responding.

At 2:20pm Lab spokesperson Jon Weiner said police and California Fish & Game staff were tracking the animal. The decision to ask employees to stay indoors is standard protocol, he said. “Any time there is any potential danger to employees we would take this step.”

On Aug. 17, the sighting of a female mountain lion with her cubs also at the Lab on alert. And in July there was concern that a lion with her cubs might be living near the Greek Theatre after they were seen on Gayley Road.

We will report on any developments.

Tracey Taylor is co-founder of Berkeleyside and co-founder and editorial director of Cityside, the nonprofit parent to Berkeleyside and The Oaklandside. Before launching Berkeleyside, Tracey wrote for...