Frederick officials say three arsons believed to be related have left one person injured and another displaced.
Police say a fire was found early Friday in the bottom floor hallway of an apartment building in the 1300 block of Taney Avenue.
Authorities say one resident was taken to a hospital to be treated for smoke inhalation, and another resident has been displaced.
Earlier Friday, police say a trash can was placed against the side of a house and set on fire in the 500 block of Grant Place. The home sustained moderate damage, but no one was injured.
Police say another trash bin leaning against a house was set on fire in the 1500 block of W. 8th Street, but did not damage the property.