WESTBURY, Long Island (WABC) -- Police are searching for two young men who broke into a Long Island school through the roof and walked around the hallways with a gun Sunday night.It happened around 10:30 p.m. at Park Avenue Elementary School in Westbury.Authorities responded to the school for an alarm, and arriving officers were met by a school security employee who assisted them in a search of the premise.They then reviewed surveillance video, which showed two black males, approximately 14 to 17 years old, entering the school through an unlocked roof hatch.One of the boys was observed taking a black handgun from his waistband as the pair walked through the halls.The suspects fled the scene after they triggered the alarm.Both males are described as being about 5-foot-7 and 140 pounds.Eudes Budhai, Superintendent of the Westbury Union Free School District, issued a statement saying the district takes all matters of school safety very seriously.The statement read in part: "The District's comprehensive alarm system immediately notified the Nassau County Police Department, which arrived at Park Avenue Elementary School minutes after the alarm was triggered. Since this weekend, the District has taken measures to enhance security at Park Avenue Elementary School including the installation of key locks on the roof hatches. The safety and security of our school community is the District's foremost priority, and District administration will continue to cooperate with the Nassau County Police Department as it conducts its investigation."Authorities say the two teenagers, both 15, have surrendered and face criminal trespassing charges.----------