Many Chinese families of passengers on the missing Malaysian airline are demanding that Malaysian officials retract their statement that all aboard died.

They say they refuse to believe it without hard evidence and don't want to start compensation claims.

Malaysia's government formally declared still-missing Malaysia Airlines Flight 370 an accident on Thursday and said all those on board were presumed dead, paving the way for claims to begin. Many of the victims' families in China — where most of the passengers were from — still hold onto hope that their loved ones are alive.