SIOUX FALLS, S.D. (KELO) -- High winds sparked concern over a grass fire near the state Veterans Cemetery in northern Sioux Falls. ‘U.S. Mail is not for sale’: Postal workers rally in Sioux Falls The fire started last night and spread to about 5 acres before firefighters from Sioux Falls and Renner were able to put it out. Crews were back out there this morning after the winds picked up an there were reports of smoke. Firefighters covered some burned trees with foam to make sure the fire did not reignite this afternoon. ...read more read less