Police say twenty squad cars were involved in the search for suspects who authorities say set fire to leaf piles, garages, vehicles, and a Dumpster. The fires occurred within a four hour period late Friday and early Saturday.

Shakopee fire investigators are suspecting the fire and explosion that gutted a wine and spirits store in the city early Friday is arson, KARE 11 reported. No one was injured, but the blast blew out the front windows of the Wine Styles beverage store and caused some structural damage.

American Bank of St. Paul, one of the Twin Cities’ riskiest lenders in recent years, has shuttered a second branch this year and plans to close another, the Business Journal reports. American Bank closed its Highland branch this month and plans to close its Phalen branch in St. Paul next month. The bank has been under heightened regulatory scrutiny since the Federal Reserve ordered it to improve its loose lending standards in 2009.

Fire investigators say a blaze that destroyed 11 homes and damaged several dozen other structures in the northwest town of Karlstad this month was probably arson. The Department of Natural Resources is still investigating and offering a $6,000 reward.

Arson is the suspected cause of a fire Thursday that caused $750,000 in damages and all but destroyed an old wooden bridge that spanned the Pike River in northeastern Minnesota, authorities say. Located about 15 miles northeast of Virginia, the bridge was on a road that saw little traffic -- but without it, a fire chief says, there could be delayed response times for emergency vehicles.