Fire crews investigated four suspicious fires in north central Toledo within five hours early Sunday, Battalion Chief David Hitt said.
No one was hurt in the fires, which began after 2 a.m.
Fires were reported 2:10 a.m. at 1438 Erie St.; 2:23 a.m. at 718 Chestnut St.; 3:57 a.m. at 660 Fernwood Ave., and 6:49 a.m. at 331 Ferris Ave.
It isn t clear whether the incidents are related, Chief Hitt said.