SCHENECTADY, N.Y. -- Central Park Middle School is given the all clear after the school was put on lockdown.

Schenectady police say they received a call around 2:30 p.m. saying there was a message written on a stall in one of the bathrooms that said there was a gun in a locker. The school was then put on lockdown.

In a letter to parents on the school's website, school administrators said they felt having the children leave school without their jackets was the safest course of action.

The letter read in part, "Any threat made in school is taken seriously and a series of steps must be followed. Rather than keeping the children locked in the classrooms while the police search continued through and after dismissal, we followed a plan to escort the children in groups out of the building. This was done to ensure their safety and to release them as close to regular dismissal time as possible. While we were uncomfortable releasing them without outerwear, it was the appropriate action to take at the time."

Schenectady police officers searched the school with a K9 unit, but no gun was found.