A Cupertino preschool was put on a temporary lockdown Wednesday afternoon because of police activity nearby, a school official said.
A nearby Sunnyvale neighborhood was also locked down.
There was no threat to the schools, but the campuses were locked down as police searched for three suspects in the area. The lockdown was lifted by 2:30 p.m., and two of three suspects had been arrested before 2 p.m.
A captain with the Sunnyvale Department of Public Safety originally said the incident started as a traffic stop in Sunnyvale after a driver failed to yield. But then it was discovered that the suspects are wanted in connection with a residential burglary, the captain said.
When officers approached the car, all three people inside ran away.
Staff at the Good Samaritan Preschool at 19624 Homestead Road in Cupertino said they brought the children inside around 11:45 a.m.. Authorities told them to place the school on lockdown because of a suspect on the loose in the area, school assistant director Stacey O'Toole said.
She said the school has locked its front doors and classroom doors, turned off the lights and asked students to lie on the floor "to protect their precious lives."
The NBC Bay Area helicopter found several police cars on Lark Lane.
Police were sweeping the entire neighborhood looking for third person who had run away from the traffic stop.
Officers were going house to house looking in front and back yards. They were accompanied by police dogs.