SOUTH PLAINFIELD – Students at South Plainfield High School were evacuated about 9:30 this morning, according to schools Superintendent Thomas Gialanella.

“All students are safe, and the police are presently investigating the situation,” Gialanella stated in a note posted to the district website today.

The students were evacuated to the middle school and Grant School, Gialanella said.

“Our students, teachers, administrators and police train for these situations,” the superintendent stated.

The high school is located at 200 Lake St.

A police monitoring service stated the school was evacuated after a suspicious note was found on the premises.

A school official could not confirm the report. “This is all kind of unfolding,” she said.

"Again all students and staff are safe and once we have more information, we will communicate to parents," Gialanella said. "Please continue to check the district website for further updates on the situation."

At 10:30 a.m., the superintendent posted a followup note to the website:

In 2011,

police were called to the high school twice

in two days after suspicious items were found. In one incident, students were evacuated after officials discovered one student brought in an airsoft replica rifle and an airsoft Claymore mine. A day earlier, State Police Bomb Squad members were called to the high school after police received a call of a suspicious package in an athletic field behind the gymnasium.

Anthony G. Attrino may be reached at tattrino@njadvancemedia.com. Follow him on Twitter @TonyAttrino. Find NJ.com on Facebook.