Here's an awkward post-mortem for the Occupy L.A. movement: Reports that the LAPD went undercover and infiltrated the movement.

Los Angeles police used nearly a dozen undercover detectives to infiltrate the Occupy LA encampment before this week’s raid to gather information on the anti-Wall Street protesters’ intentions, according to media reports.

None of the officers slept at the camp, but they tried to blend in during the weeks leading up to the raid to learn about plans to resist or use weapons against police, a police source told the Los Angeles Times. The source spoke on the condition of anonymity because the case is ongoing.

This is one of the more alarming things to come out of the Occupy L.A. movement, which was noted for having a decent relationship with the city before the encampment’s closure.