Two people who were riding the Ninja roller coaster at Six Flags Magic Mountain when a fallen tree branch derailed it Monday filed a lawsuit against the Southern California amusement park Wednesday after they allegedly suffered head injuries in connection with the incident.

Jeremy Ead and Olivia Feldman's attorney, Barry Novack, said the two are seeking unspecified damages after suffering "direct trauma," Southern California's NBC news affiliate reported.

Novack asked why the amusement park would build the 2,700-foot-long coaster around the "wilderness," with trees weaving in and out of it. The ride opened more than 25 years ago.

"They owe the highest degree of care to [the ride's] passengers," Novack said. "You don't build it going through trees."

The plaintiffs are seeking reimbursement for emotional distress, medical expenses and loss of earnings. The lawsuit doesn't specify a dollar amount, NBC reported.

According to the lawsuit, the park failed "to provide a safe and fit vehicle, so as to cause plaintiff to suffer injuries and damages."

After the accident, Ead told reporters a tree branch hit him in the head during the ride and made him bleed, according to The Los Angeles Times.

The California Department of Industrial Relations is expected to release a report with an analysis of the crash, NBC reported.

Two riders who suffered what park officials called minor injuries were transported to hospitals Monday, ForsythNews.com reported. Over the course of two hours, firefighters rescued 22 passengers who were stranded 40 feet above the ground, according to NBC.

"The safety of our guests and employees is our number one priority, and as a precaution, the ride will remain closed until a thorough inspection of the area is complete," park officials said in a statement after the incident.

According to The Morning Call, Novack recently filed a lawsuit against Disneyland Resort regarding an Anaheim man who claimed he was injured in a Splash Mountain accident. The theme park was found negligent, but the jury said the accident "was not a substantial factor in the man's injury."