The raid resulted in little more than an empty park and increased tensions between the federal government and Los Angeles’s mayor.

Federal immigration enforcement agents swept through MacArthur Park in the Westlake District of Los Angeles on Monday morning, prompting a surprise appearance by the mayor.

Los Angeles Mayor Karen Bass is speaking out against the U.S. Immigration and Customs Enforcement agents who took over MacArthur Park where children were playing, calling the takeover attempt “absolutely outrageous,” USA Today reported. Video footage shows armored vehicles, officers ,and armed troops swarming a soccer field on a sunny July 7 day.