Amnesty calls for criminal investigation into Shell over alleged complicity in murder and torture in Nigeria

Rights group publishes full evidence review, including statements alleging Shell managed undercover police unit in 1990s after its operations ended in Ogoniland

Amnesty International is calling for a criminal investigation into the oil giant Shell regarding allegations it was complicit in human rights abuses carried out by the Nigerian military.

A review of thousands of internal company documents and witness statements published on Tuesday points to the Anglo-Dutch organisation's alleged involvement in the brutal campaign to silence protesters in the oil-producing Ogoniland region in the 1990s.