A water line ruptured in St. Paul early Saturday, flooding eight to 10 square blocks downtown, The Star Tribune reported.
The 20-inch main broke around 12:30 a.m. on Wall St., between 5th and 6th Streets, Rick Larkin, St. Paul's director of emergency management, said as reported by The Star Tribune.
The 61-year-old main break, which released an estimated 1.75 million gallons of water before utility crews isolated it around 3 a.m., could have altered the quality of the area's tap water, The Pioneer Press reported.
Aside from the destroyed streets, there was not much structural damage to the apartments and office buildings surrounding the break, Larkin said as reported by The Star Tribune.
The cause of the break is not yet known, but Production Distribution Manager Jim Graupmann said it was probably due to corrosion or a manufacturing defect, The Pioneer Press reported.
City council member Dave Thune strictly advised citizens not to drink the tap water at this time because the drop in water pressure from the break could allow bacteria to enter the water, The Pioneer Press reported.