A lawsuit against Boeing was filed in Chicago federal court on Thursday over the Ethiopian Airlines plane crash that killed 157 people in March, Reuters reports. The lawsuit was filed by the family of Jackson Musoni, a Rwandan citizen, and is believed to be the first filed over the March 10 crash. Another lawsuit against Boeing over the Lion Air plane crash in Indonesia late last year was also filed earlier this week in Illinois federal court. According to those court documents, the estates of four deceased individuals claimed they—along with 189 others—were killed “as a direct and legal result of the defective and unsafe conditions of said products and the component parts” of the Boeing 737 Max 8. Two other lawsuits related to the Lion Air crash were filed last week, The Washington Post reports. Some families of the dead in the Lion Air crash agreed to take $91,600 from Boeing and “not pursue legal action against Lion Air, its financial backers and insurers, as well as Boeing,” according to The New York Times.