Authorities in Moscow say nine people were killed when a helicopter and a private airplane collided over the Istra reservoir in the Moscow region.
Rescue workers at the scene on August 9 said there were no survivors. Search teams have recovered eight bodies and are searching for one more. Three of the victims are reported to be young children.
Authorities have opened a criminal investigation into possible violations of air-safety regulations.
Based on reporting by TASS and Interfax