The UN human rights chief, Volker Turk, has called on the US to conclude its probe into the Iran school strike that killed at least 168 people, mostly children. The strike evoked a visceral horror, according to Turk. The US has been investigating the strike, but no further details have been released.

The strike - which killed at least 168 people, mostly children - "evoked a visceral horror", Volker Türk said.