00:00New at 6, a case of mistaken identity led to a chaotic scene.
00:04A crowd of people gathering in what they thought was an ICE raid.
00:07It wasn't, but things still got out of hand.
00:09And then Empire Bureau Chief Rob McMillan shows us what happened.
00:13A large crowd of protesters gather outside a number of undercover law enforcement officers
00:18last week in the city of Cudahy.
00:21Tempers flaring, people pulling out their cell phones to record,
00:24thinking this is yet another immigration crackdown involving ICE.
00:29Trouble is, it wasn't.
00:31It was Fontana police serving a search warrant as part of a narcotics investigation.
00:36During the service of that search warrant at that residence for the narcotics,
00:40they were approached by a very hostile, agitated crowd.
00:43They identified themselves as Fontana police officers,
00:46said they were not doing anything with ICE.
00:47They kept getting yelled at that they were ICE.
00:49They showed proof that they're not.
00:50They have Fontana police and badges that are specific.
00:53They still refuse to cooperate and back away.
00:55That's when the L.A. County Sheriff's Department got involved.
00:58Helped the crowd getting even more agitated.
01:00Police saying they then started slashing the tires on multiple police cars.
01:05They started to kind of get physically aggressive with the officers.
01:08They feloniously vandalized their vehicles.
01:10They slashed their tires.
01:11They started to break the vehicles, which that then,
01:13it crosses that line of peaceful protests to interfering with an investigation.
01:18And these officers were out there in their community trying to take drugs off the street,
01:21which is taking poison out of the hands of children.
01:24Fontana police making it clear they do not assist with ICE operations.
01:29The only time we're going to assist them is if now life in danger,
01:31if they're in trouble and something bad's happening, we're going to assist to that point.
01:34But we do not enforce immigration.
01:36It is not our point.
01:37It's not our duty.
01:39We serve the citizens of Fontana and the community.
01:41The L.A. County Sheriff's Department is investigating the vandalism for potential charges.
01:46So far, no one's been arrested.
01:49In Fontana, Rob McMillan, ABC 7 Eyewitness News.