Families of some of the 346 people killed in two fatal Boeing 737 MAX crashes plan to object to a tentative nonprosecution agreement between the planemaker and the U.S. Justice Department, a lawyer said on Saturday.

The Justice Department advised families of victims of two 737 Max crashes that it was considering a plan to drop a previous agreement under which Boeing would have pleaded guilty.

The US Department of Justice is set to drop a criminal case against aircraft maker Boeing despite the fact that the company agreed to plead guilty last year, according to attorneys for families of victims of two fatal crashes of the 737 Max that led to the case.