Published: May 04, 2011 6:26 PM EDT
Updated: May 04, 2011 3:51 PM EDT

LEE COUNTY, Fla.- Crime Stoppers is asking for the public's help with tracking down a group of vandals who have broken into Riverdale High School twice in the last month.

Detectives with the Lee County Sheriff's Office say the masked teens entered the school for the first time on April 7th, shortly after 1 a.m. The teens broke in through the top window of the school's doors on the northwest side of the school. Once inside, they began kicking in door handles in an attempt to gain entry into several offices, which they were unable to do.

Surveillance cameras inside the school caught the teens meandering the hallways on video - which they were apparently aware of, since they blatantly displayed several obscene hand gestures directly at the cameras. During their time inside the school, the students caused several hundred dollars in damage.

Then this week, in the early morning hours of Tuesday,  the vandals struck for a second time, this time gaining access by busting out several of the entry doors on the north side of the school. Inside, the suspects broke four glass dividers on the trophy case in the school's lobby. They then proceeded onto the attendance office, where they continued their rampage, and then finally to the staff dining room, where they threw condiments from inside the refrigerator on the walls and floor. Before leaving, they left one last mark by breaking a vending machine. During their second round in the school, they broke a total of 10 windows - valued at approximately $300 each.

The suspects are described as three white or Hispanic males, and one black male. In both instances, the teenagers covered their faces and wore mostly dark clothes to disguise their identity.

Anyone with information on the Riverdale break-ins, or the suspects in the surveillance photos, are asked to call Crime Stoppers at 1-800-780-TIPS (8477). All callers will remain anonymous and will be eligible for a cash reward of up to $1,000. Tips may also be made online at www.swflcrimestoppers.org or through the TipSubmit app on any iPhone.