Minnesota authorities said the mayor of Winnebago and his adult son were arrested Thursday after police seized hundreds of marijuana plants at multiple homes.

The South Central Drug Investigation Unit, a multi-jurisdictional task force that operates in four southern Minnesota counties, said officers took Scott Robertson and his son Jacob Robertson into custody on charges related to marijuana cultivation.

No charges have been formally filed against Mr. Robertson or his son at this time, according to the state’s judicial database. Both men remain behind bars pending charges. 

Police said they first launched an investigation into the mayor in early 2023.  

Mr. Robertson won Winnebago’s mayoral race in 2021 via a write-in campaign. No other candidates filed to run for office for the city of about 1,400 people.

• Matt Delaney can be reached at mdelaney@washingtontimes.com.