He said the cause of the break had not been determined and might simply be old age.

The cause of the fire has not yet been determined.

The cause of death for the third child was not determined.

The family said the cause of death had not been determined.

The cause of death had not been determined, she said.

The cause and time of death have not been determined, he said.

The cause of death had not yet been determined, said his son.

The cause of death had not been determined last night.

He said the cause of the fire had not been determined.

The cause of the fire had not been determined last night.