A Florida K-9 helped find a missing and endangered 11-year-old girl on Friday after locating the child in a park bathroom, according to law enforcement officials.

Hillsborough County Sheriff’s deputy Sarah Ernstes and K-9 Mary Lu responded to the 16000 block of Carlton Lake Drive at about 8 p.m. to search for the missing girl.

Ernstes and K-9 Mary Lu tracked the girl to a neighbor’s house, where they learned the residents had given her a ride to a nearby apartment complex in Wimauma, the sheriff’s office said.

The sheriff’s office said units moved to that location and, once there, K-9 Mary Lu alerted deputies to a locked bathroom door at a park in the area.