1 missing after Andover apartment fire

ANDOVER, S.D. (KSFY) - A woman is missing after a fire broke out at an apartment in Andover, according to the Day County sheriff.

The fire happened on the corner of Main Street and 2nd Avenue around 1:30 a.m. Friday. A passerby saw smoke and flames coming from the four-unit apartment building and called authorities.

The sheriff said authorities are unsure if the woman was inside the apartment -- which will be a total loss -- at the time of the fire.

They are working with her family and monitoring the woman's social media accounts in attempt to locate her.

The fire is under investigation by the Day County Sheriff's Office, the South Dakota Division of Criminal Investigation, the State Fire Marshal's Office. ATF is assisting with the investigation.