Hackers aligned with Anonymous defaced scores of Venezuelan government websites over the weekend, a retaliation to evidence that police had killed protesters.

According to multiple reports, police shot and killed three civilians Wednesday, each of them part of swelling protests against President Nicolas Maduro, successor to longtime president Hugo Chavez.

The Venezuelan daily Ultimas Noticias compiled user photos and videos into a single video of one conflict, which purportedly led to two of those deaths, and indicates that some of the police forces were plainclothes officers on motorcycles.