Police dogs brought on site to check for a bomb at Helen Keller Middle School found nothing, and students returned to class this afternoon.

Police Chief Tim Shaw said the site is "all clear." He said the K9s were brought in from Stamford and Norwalk, and Fairfield and Trumbull police assisted with the children and traffic.

"Special thanks to ECC for letting the kids stay there temporarily," Shaw said.

Peggy Sullivan, director of operations for Easton, Redding and Region 9 schools, said parents were kept informed through email updates school officials sent.

"Everybody is comfortable with returning to the school,"Sullivan said. "Everything went smoothly, and everyone is safe. The relocation to the Easton Community Center went smoothly, and the ECC was most helpful."

She said that 306 students attend the middle school, and they evacuated safely and well.

"We’ve not done a full evacuation drill, but we've been talking and planning to do one," she said.

Easton police are investigating the note left in a boys' bathroom this morning that prompted the bomb scare, Sullivan said.

"The building was cleaned last night, and the note was not there last night," she said.

Sullivan praised the prompt and professional response by ECC staff, police and the Keller staff. She said everyone was "most helpful."

The Easton Community Center occupies the same campus on Sport Hill Road as the middle school and the Easton Public Works Department garage.

Dismissal will be at the usual time.