PORTLAND, Ore. (KOIN) – Authorities say a sheriff’s sergeant from suburban Portland has been arrested on accusations of sexual misconduct involving a teenager in Meridian, Idaho.

Washington County Sgt. Michael Alexander, of Lake Oswego, turned himself in Friday and was booked into the Canyon County Jail on charges of lewd conduct with a minor younger than 16 and enticing a child through use of the Internet.

Washington County Sgt. on unpaid leave after allegations surface he had relations with a teen in Idaho #koin6news pic.twitter.com/2BnTmX2etz— Jennifer Dowling (@JenDowlingKoin6) March 4, 2016

Police in Meridian say Alexander met a 15-year-old boy through the dating app Grindr and traveled to Idaho to have sex with him twice last year.

The boy’s mother contacted authorities after discovering inappropriate text messages on his phone.

Sheriff Pat Garrett of the Washington County Sheriff’s Office learned of the investigation Monday and placed the 45-year-old sergeant on unpaid administrative leave. Alexander’s job status remained the same Friday.

Sheriff’s spokesman Sgt. Bob Ray says it doesn’t appear that Alexander used county devices to communicate with the boy.

“That is not believed to be the case. But, we have not confirmed any of that information,” Ray told KOIN 6 News.

Alexander’s neighbors say the news is disturbing.

“We’ve never had a problem. I’m in shock,” says Stacia, who has kids. “I’ll call some moms in the neighborhood and we’ll all get on the same page and make sure all the kids in this neighborhood are safe.”

Ray says it is too early in the investigation to know if there are any local victims.

Alexander has worked for the sheriff’s department for nearly 19 years. He works as a supervisor at the office in Cornelius and has also worked with members ofthe county’s Crisis Intervention Team

Alexander is being held on $1 million bail.The Associated Press contributed to this report.