Russian President Vladimir Putin has ordered investigators to find out if enough was done to prevent 150 people being killed in floods in southern Russia.
Mr Putin, who was criticised for his slow reaction to disasters in his first presidency, has visited the flood zone in Krasnodar.
He said that money would be put aside for building new homes for victims of the worst flooding in the region in decades.
A local police spokesperson said 150 people had been killed in the flooding after two months' average rainfall fell in a few hours on Friday night.
Most of the dead were drowned, many of them elderly people caught unawares as they slept.
Police said survivors climbed into trees and onto roofs to stay above the waters, which flooded entire ground floors of some buildings and created driving torrents in some streets.
Rail traffic resumed today after being suspended yesterday and a spokesman at the Black Sea port of Novorossiisk said crude oil loadings would restart later today.
Mr Putin and the regional governor surveyed the flood zone from a helicopter and bumped over a country road in a minibus with the head of the Krymsk district, discussing the disaster response in the town worst hit by the flooding.
He said: "I have asked the leadership of the (federal) Investigative Committee to come down.
"The Investigative Committee will check the actions of all the authorities - how notice was given, how it could have been given, how it should have been given and who acted in what way. I ask you to cooperate."
Mr Putin also ordered the Emergencies Ministry to check a reservoir near Krymsk.
The state water resource agency has rejected suggestions by residents that a release of water from a nearby reservoir was responsible for the severe flooding in Krymsk.
