A bomb threat called in to the Stanford Shopping Center on Wednesday prompted Palo Alto police to sweep the area in search of any explosives with the help of a K-9. The preliminary investigation turned up nothing.

The threat was called in to the shopping center's management office at around 10:15 a.m., police said. The mall is located along El Camino Real between Sand Hill and Quarry roads.

Officers and mall security team members were sent across the mall with a police K-9 to look for explosives, according to the Police Department. At that point, most stores weren't open for business. The police sweep was wrapped up as of 11:30 a.m. with no bomb found, police said.

The Police Department planned to increase patrols in the area due to the called-in threat. The agency plans to release more information on the incident later this afternoon.

The public was advised to avoid the area during the investigation. No evacuations or lockdowns were ordered.

Highway 84 closed between Portola Road and Highway 35

Highway 84 is closed between Portola Road and Highway 35, the San Mateo County Office of Emergency Management said Saturday, March 11, afternoon.

This area of Highway 84 will be closed "indefinitely" due to major roadway damage, according to the emergency management office.

Motorists are advised to use alternate routes such as Highway 92, the emergency management office said.