The children of the 14 mothers in Tuesday's lawsuit are also part of the May lawsuit, Carrillo said.

In December 2010, the Los Angeles County Sheriff's Department began investigating Berndt after authorities learned of hundreds of "questionable photographs of children on film that Mr. Berndt had brought (to) a local store to have developed," according to Tuesday's lawsuit.

Berndt was removed from his teaching job in January 2011 after school officials learned of the police investigation, authorities said.

Authorities have said they have discovered roughly 600 images allegedly taken by Berndt in his classroom.

A teacher for 30 years, Berndt initially challenged the school district's decision to dismiss him. But he eventually dropped his appeal and resigned in spring 2011.

His arrest in January led to broader fallout over the adequacy of safeguards for the school's students and the prospect of more victims.

Days after Berndt was taken into custody, another Miramonte Elementary teacher -- Martin Springer, 49 -- was arrested and charged with three felony counts of lewd acts with a girl younger than 14. He has pleaded not guilty.

The Los Angeles Unified School District board subsequently shut Miramonte for two days, during which the board reconstituted the entire staff in the 1,400-student school. Miramonte is in unincorporated Los Angeles County within the Florence-Firestone area, about six miles south of downtown Los Angeles.