Canadian officials now say the 30 people still missing after an oil train derailed and exploded in a small town in Quebec are presumed dead.
With 20 bodies found, that would put the death toll from the July 6 accident at 50.
A criminal investigation has been launched into the tragedy's circumstances.
The head of the train's U.S. owner has blamed the engineer for failing to set the brakes properly.
Parts of the devastated area had been too hot and dangerous to enter and find bodies even days after the disaster.
Dozens of buildings were flattened in the historic center of the lakeside town, including a popular bar that was crowded when the tragedy occurred.
Based on reporting by AP and Reuters