The devastated relatives of those killed in a deadly bus crash have visited the site inside the Tunnel de Geronde near the Swiss town of Sierre.
Family members carried flowers to the site where 22 children and six adults were killed on Tuesday night.
Earlier the relatives had the heartbreaking task of identifying the bodies ahead of their repatriation.
The police chief heading the investigation into the tragedy confirmed at a news conference at the crash site that 19 of the 28 victims have now been formally identified.
A further 24 children were hurt when the Belgian tourist bus hit a wall less that an hour after heading home from a skiing holiday in the Swiss Alps.
Some of the crash survivors have now left hospital and have flown back to Belgium on board a Brussels Airlines plane, a Geneva airport spokesman said.
Our Europe Editor James Mates said: In terms of the cause, police are taking seriously the thought that either the driver or a teacher may have been putting a DVD in a machine just when it happened. That apparently has come from one of the children speaking to their parents. Police are looking very carefully at that.