Suffolk County police, reacting to another threat against Half Hollow Hills High School East, increased patrols at the Dix Hills school Wednesday, a department spokeswoman said.
The Half Hollow Hills school district said late Tuesday it had received another threatening statement directed toward the same high school and that the building had been secured.
A police spokeswoman said police are aware of the new threat and take all such threats seriously.
The school told parents in an email that it was operating on a normal schedule Wednesday and acknowledged there would be an increased police presence.
Police said Tuesday a 16-year-old honor student at the school had been arrested and charged with unauthorized use of a computer, an intrusion discovered during an investigation into multiple bomb threats against Half Hollow Hills East.
The teen was arrested at 8:06 p.m. Monday and charged as an adult in the misdemeanor. Police said an arraignment has been scheduled for Feb. 18.
Police are investigating whether Salvatore Bracco's use of the computer is related to three threats sent to the school and to Suffolk police starting on Nov. 6.
Half Hollow Hills board President Eric Geringswald said Bracco has been suspended for the school year. "We're happy that the police have been able to get their investigation to the point where there's an arrest," Geringswald said.
Bracco allegedly used a computer without authorization on Oct. 2 and Oct. 24, police said.
Officials said one threat sent to the district read, in part: "im gonna blow up hills east tmrw at 9 am . . . don't try to stop me; you will all die."
The district said an email to police read: "I am bombing Half Hollow Hills East Tomorrow at 9 pm sharpp."
A third email threat was sent to police, resulting in a dismissal for High School East at 9:30 a.m. Dec. 3.
The Second Precinct has assigned a police officer to the high school for the time being.