House lawmakers are investigating how some tech companies will handle health data related to abortions

Three House lawmakers are launching an investigation into the collection and sale of personal health data related to abortion by data brokers and period-tracking apps.

They are seeking information from five data broker companies and five health-tracking app companies about their collection, retention and sale of personal health data, according to letters sent Thursday night by Reps. Carolyn Maloney and Raja Krishnamoorthi, chair and member of the House Oversight Committee, along with Rep. Sara Jacobs. The companies have until July 21 to respond, per the letters, which were viewed by CNN Business.

The move comes amid increasing concerns that personal data, such as location history, health history, messages and searches, could be used by law enforcement in some states to criminalize people seeking or providing abortions, after the Supreme Court struck down Roe v. Wade.