More relatives reached the site of the Ethiopian jet crash on Thursday (March 14).

Grief over their loss.

And frustration over how long it will take to identify the victims. So severe was the impact, the remains are just charred fragments.

Full identification could take weeks or months.

Meanwhile the black boxes from the jet have arrived in France.

Voice and data recordings from the Boeing 737 MAX 8 are set to be analysed.

Investigators at this facility just outside Paris will try to determine why the jet crashed.

And if there's any connection to a crash involving the same model five months earlier in Indonesia.

There were no survivors in either incident, which both took place just after takeoff.

The MAX 8 jets are now grounded almost worldwide.

Japan on Thursday became one of the last major nations to order the move - following a similar decision by the U.S. a day before.

For Boeing, there's a lot at stake.

The MAX 8 is an update of its 737 line, and its best-selling product.

Now production continues, but airlines are unlikely to accept - or pay for - planes that aren't allowed to fly.

Analysts estimate that could cost Boeing up to 2.5 billion dollars a month in delayed payments.

If it's found at fault, the company could also face a welter of lawsuits from airlines affected by the disruption.

Back in Ethiopia, the relatives just wish they could bury their dead.