(Newser) – For the second time this summer, a mosque in Joplin, Missouri, has caught fire—and this time it's been "completely destroyed, along with the security cameras," says the sheriff's department. The first fire, reported July 4th, was labeled arson, and the Council on Islamic-American Relations has offered a $10,000 reward for information on the latest blaze. Mosque leaders say worship will continue despite the fire, FourStatesHomepage.com reports. No one was inside during this morning's fire, which was reported around 3:30am—approximately the same time as the previous one, Talking Points Memo notes. The FBI is investigating.