A church security guard in Lancaster County was injured Sunday morning when another guard's handgun accidentally went off, police said.The shooting happened around 10 a.m. during services at the Worship Center on New Holland Pike, according to police.“There was no need to evacuate the building because it was contained to a specific room within the church building itself," said Lt. Matthew Hess, of the East Lampeter Township Police Department. Police said five members of the security team were in an office when one guard accidentally discharged his weapon.The fired round ricocheted off the floor and a second security guard in the room was struck in the face and head by either bullet fragments or pieces of the flooring, police said. The injured security guard was treated at a hospital.“It is unfortunate that this type of incident occurred, and again, it was unintentional," Hess said.Police said the church and security team members are cooperating with the investigation.The names of the people involved haven't been released, and police haven't said whether charges could be pending in the case.