A grand jury in the case of Sandra Bland has decided not to return any indictments, according to Darrell Jordan, a special prosecutor handling the case.
Bland, an African-American woman, was found dead in her cell three days after she was arrested for allegedly failing to use her turn signal on July 10. She was 28.
Officials in Waller County, Texas, have said she hanged herself with a plastic bag. Her family and others have questioned that account.
Her case attracted widespread attention amid national discussions about excessive force and the role of race in policing.