"Of course, investigations must be conducted at the highest level to find out the causes of these tragedies and make the necessary conclusions," Putin said today.
Prime Minister Mikhail Fradkov will lead the probes into the incidents.
Today, 62 residents and staff died after a blaze swept through a retirement home in a remote village in the southern Krasnodar region.
The death toll from an explosion at a coal mine on March 19 in Siberia has risen to 106. One miner was rescued alive today and four miners are still missing.
On March 17 an ageing commercial jet crashed in Samara at the weekend. Six of the 57 people aboard died.
(compiled from agency reports)