A class-action lawsuit was filed against Boeing by shareholders who claim they were defrauded by the airline manufacturer after two of its 737 MAX planes crashed.

The lawsuit was filed Tuesday in the U.S. District Court, Northern District of Illinois by lead plaintiff Richard Seeks. He filed his intention to seek a class-action status against Boeing after the crashes of Lion Air Flight 610 last year and Ethiopian Airlines Flight 302 last month, alleging that Boeing defrauded shareholders by not disclosing lapses in safety in its 737 MAX planes, two of which were involved in fatal crashes in the past several months.