Officers responded to a call of gunshots fired at federal agents Saturday amid immigration enforcement operations in Chicago that drew residents to protest in the streets, authorities said. There were no reports of anyone being hit by gunfire, according to police, and the Department of Homeland Security (DHS) stated that the shots were fired by a man in a black Jeep who targeted the agents. The suspect and the vehicle have not been located.

Tensions are high as federal enforcement has grown increasingly aggressive with Operation Midway Blitz, an immigration operation ongoing for two months in Chicago. Protests have ensued, with local residents sometimes confronting heavily armed agents. A federal judge recently issued an extensive injunction limiting the use of force by agents after determining that a top Border Patrol official had misrepresented threats posed by protesters.

Saturday’s operation in Little Village, a predominantly Mexican neighborhood, spurred protests during which demonstrators blew whistles, honked car horns, and shouted demands for agents to leave. Some protesters confronted police officers who were seen as supporting the federal agents. Damage was reported to a police vehicle with a smashed taillight and a damaged windshield, and DHS noted that some protesters threw paint cans and bricks at agents' vehicles. U.S. Customs and Border Protection has not yet responded to requests for comments regarding the incidents.