An Iowa City Fire Department investigation was unable to determine the cause of a Feb. 18 apartment-house fire on East College Street.

The apartment building, 515 E. College St., was too severely damaged to identify the origin or cause of the blaze, according to a release. The building was cited for nine violations in December.

Ten residents were displaced by the fire.

Despite the lack of a finding, the Fire Department said the investigation will continue.

— by Emily Busse