The families of three female high schools students filed a federal lawsuit in Connecticut Wednesday to block transgender athletes from competing in athletic competitions.

The plaintiffs, represented by the Alliance Defending Freedom, filed the the discrimination complaint on the grounds that permitting transgender high school students from competing is contrary to Title IX regulations. The law allows for equal sporting opportunities for all genders, but the plaintiff’s argue that this would be undermined for sports competitions and opportunities for scholarships.

The Connecticut Interscholastic Athletic Conference (CIAC), who govern Connecticut high school sports, maintains that the Title IX regulations act as an anti-discriminatory law. Regardless of gender identity all students are to be treated with equal opportunities. This has allowed two transgender athletes to compete in girls’ track competitions.

The Alliance Defending Freedom asked the courts to prevent the two transgender girls from competing in the upcoming championships whilst the lawsuit progresses.