A 58-year-old man who was once a licensed foster parent is behind bars this week in Texas, where he stands accused of sexually assaulting five children who lived with him between 2005 and 2010, PEOPLE confirms.

Miguel Briseno took in more than 180 young girls as a foster parent before the state revoked his license seven years ago, according to a spokesman with the Bexar County Sheriff’s Office.

The spokesman tells PEOPLE that authorities in two Texas counties firmly believe there are more victims out there.

A joint investigation between investigators in Bexar and Medina counties led to Briseno’s recent arrest. He faces five charges of sexual assault of a child and is being held on $500,000 bond.

It was unclear Friday if Briseno has hired an attorney who could comment on his behalf. He has yet to enter pleas to the counts against him.

https://www.yahoo.com/news/former-texas-foster-dad-took-204246320.html