WEST PALM BEACH — A gun fell out of a kindergartner’s backpack in a Florida charter school classroom, but it didn’t fire and it is unclear how it got there.Somerset Academy Lakes Elementary spokeswoman Lynn Norman-Teck said the child’s teacher immediately picked up the gun after it fell Thursday morning and no students were endangered.Principal Clint Duvo informed parents about the incident on the West Palm Beach school’s Facebook page. He wrote that the child didn’t know how the gun got into the backpack and had no intention of bringing it to school. Norman-Teck did not know whether the gun was loaded. Palm Beach County sheriff’s detectives are investigating.The school opened in 2016. Somerset Academy is a large charter school company with sites throughout Florida.