Three years ago, tragedy struck for a group of children out on boats at Lake Syamozero in northern Russia's Karelia region.

Fourteen people, mostly children, died when their boats capsized in a storm.

The children had been sent on an activity holiday organised by Moscow's local government for children from low-income families.

But evidence suggests camp staff ignored severe storm warnings by emergency services and dismissed children’s pleas to cancel the boat trip, insisting they go.

The BBC also found evidence that parents and local officials informed Moscow government about overcrowding, poor conditions and weak safety procedures in the camp in 2015.

In March 2019, the camp’s director and her deputy to were sentenced to 9.5 years in prison. Two officials from Russia’s consumer watchdog who were responsible for checking the camp and camp’s instructor were acquitted.

But now, the state prosecutor and parents of the victims have won an appeal against the acquittals of the former officials, and the case will return to court.

Reporter: Yulia James

Camera: Yevgeny Zhuravlev

Producer: Emma Wells