EASTON - Some Easton parents want school administration to explain why their children weren't allowed to contact them after a bomb threat at a middle school.

The threat was found written on a bathroom wall last week at Helen Keller Middle School and caused a nearly two-hour evacuation.

Superintendent Tom McMorran says officials have a protocol for a specific reason.

"If we have unrestricted communication at that time via cellphones, you'd have many hundreds of messages going out, alarming parents," he says.

McMorran says parents were updated every hour via text messages and email until police found no evidence of danger.

He says he is looking to see whether the cellphone policy needs to be changed during emergency situations.