Hotel operator Wyndham Worldwide will improve its staff training and procedures after authorities cracked down on gang-led child prostitution rings in California hotels, a probe that drew media and activist attention to the chain, a hotel spokesman said.

Wyndham is expanding its years-long efforts to fight child sex trafficking by reviewing its operating practices in partnership with the nonprofit ECPAT-USA (Ending Child Prostitution and Trafficking), said Michael Valentino, director of communications for Wyndham Worldwide. Southern California authorities recently completed an 18-month investigation into allegations that three rival Crips gangs collaborated to prostitute girls and women out of California hotels through Internet-arranged meetings.Wyndham is expanding its years-long efforts to fight child sex trafficking by reviewing its operating practices in partnership with the nonprofit ECPAT-USA (Ending Child Prostitution and Trafficking), said Michael Valentino, director of communications for Wyndham Worldwide. Southern California authorities recently completed an 18-month investigation into allegations that three rival Crips gangs collaborated to prostitute girls and women out of California hotels through Internet-arranged meetings.