UPDATE: Police locate missing North Fond du Lac teen

Update: 5/7/25 @ 10:01 a.m. Allan Leiva-Leiva has been found safe.

NORTH FOND DU LAC, Wis (WISS) – North Fond du Lac police are asking for help locating a missing endangered person who may have experienced a “mental break.”18-year-old Allan Fernando Leiva-Leiva was last seen at his parents’ home at 325 Polk Street on Sunday night.

Police say Leiva-Leiva left the house at about 9:30 p.m. with a bag of tools. He said he was going to do a challenge on TikTok, a popular social media website, and help some girls who were in trouble. He has not since returned and he hasn’t been to school this week. Police say his phone does not ring through. Police have attempted to pinpoint his location through Snapchat, a social engagement phone app, but it’s been reported his location has been off for a few days.

The cell phone provider reported his last tracked location was in Chilton, around 8:20 p.m. on Tuesday.

An alert said this is “extremely abnormal behavior for Allan to run away from his family, and North Fond du Lac PD is worried that Allan is experiencing a mental break.”

The missing Leiva-Leiva is a Hispanic male, 5’9” tall. He weighs 167 pounds. Leiva-Leiva has short, wavy black hair and brown eyes. He was last seen in a white, long-sleeved shirt with red stripes on the sleeves and blue jeans.

If you have any information about Leiva-Leiva, please contact the North Fond du Lac Police Department at (920) 929-3760. Reference case number 25NP03397.