BILLERICA (WBZ) ― The Shawsheen Valley Vocational Technical High School in Billerica was locked down Friday so police could search the complex for a weapon.
Authorities locked students inside their classrooms around 11:30 a.m. after they received information that there was a gun inside the school.
Police said nothing was found, but they have now expanded their search for a weapon outside the school, possibly to some homes.
Based on information they have received, they believe someone may have a gun, but it is not at the school.
There were reports that ammunition was found, but investigators dismissed that as a rumor.
Several parents were frustrated by the lack of information being provided during the lockdown, which ended around 2 p.m.
They told WBZ they had received an automated phone call from police, informing them of the situation, but the call did not provide any specifics. Many rushed to the school to find out more, even though the police call requested that they stay away.
No one was hurt. Students were kept in their classrooms as a precaution. They were not allowed to go to their lockers. Some texted their parents hoping to find out more information.
All students were required to pass through a metal detector before they were allowed to leave for the day.
At one point, investigators searched a white van in the school's parking lot. A red SUV was parked next to it with a door open. It's not clear yet what role, if any, the vehicles had in the lockdown.
By the end of the day, all school lockers were searched, though nothing turning up. A bomb-sniffing dog was also brought in to investigate but didn't find anything.
All after-school activities were cancelled, but the school's football game will be held as scheduled Saturday.