The government of Venezuelan President Nicolas Maduro has committed systematic human rights violations including killings and torture amounting to crimes against humanity, U.N. investigators said in a report.

The report was based on more than 270 interviews with victims, witnesses, former officials and lawyers, and confidential documents.

Specifically, they had information indicating Maduro ordered the director of the national intelligence service SEBIN to detain opponents “without judicial order”, Francisco Cox of the U.N. Fact-Finding Mission told a news briefing.

They included the former head of the National Intelligence Service, General Christopher Figuera, whose testimony was corroborated, the report said.