NAPERVILLE, Ill. - Authorities in Naperville are expanding their search in hopes of finding a missing woman who disappeared last month in the western suburb.

What we know:

Beginning at 9 a.m. Monday, officials said Naperville PD and the Naperville Emergency Management Agency would be conducting a large-scale search at Springbrook Prairie Forest Preserve for Olasinmibo "Sinmi" Abosede.

The search would involve 30 to 40 trained volunteers and K9 teams.

The preserve and parking lots will remain open, but officials wanted to alert visitors to the increased activity and that they should avoid interfering with search operations.

The backstory:

Abosede, 46, was last seen on July 30 in the 2100 block of Sudbury Street, according to the Naperville Police Department. She was walking in a res

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