BARNAUL, July 31. /TASS/. Four people, including a child, were found dead in a tourist camp room near lake Aya in the Altai region, a source in the regional emergency services told TASS.

"One of the rooms had to be unlocked, people hadn’t left it in a long time. There four bodies were discovered, including an underage child," the source said.

He noted that the cause of death is yet unknown, a forensic investigation is underway.

The directorate of the Investigational Committee of the Altai Region refused either to confirm or deny this information.