Ethiopian Airlines has offered the relatives of 157 victims of last Sunday's Boeing 737 Max plane crash bags of scorched earth to bury in place of their loved ones, reports say, BBC reports.
Earth from the crash site is being made available for a planned service in Addis Ababa on Sunday, Reuters reports.
Families have been told it could take up to six months to identify remains.
Countries across the world grounded the 737 Max 8 and 9 aircraft after flight 302 crashed on 10 March.
Ethiopia's transport minister said on Saturday it may take "considerable time" for investigators to find the cause of the crash involving the new aeroplane.
"An investigation of such magnitude requires a careful analysis and considerable time to come up with something concrete," Dagmawit Moges told a press conference.