SIOUX FALLS, S.D. (AP) - The National Weather Service now says three tornadoes struck Sioux Falls overnight.

National Weather Service lead meteorologist Todd Heitkamp in Sioux Falls tweets that he has determined three separate tornadoes struck South Dakota's largest city late Tuesday.

All three tornadoes were rated EF-2. Two had winds of about 125 mph while the third had winds of 130 mph.

The twister with the fastest winds struck the Avera Health Complex on the south side of Sioux Falls.

A hospital spokesman says seven patients and one person outside the hospital suffered minor injuries.

The last tornado confirmed in Sioux Falls was an EF-0 that struck on June 12, 2001.

But the weather service says it was a brief touchdown with only minor damage