East Baton Rouge Parish Sheriff Sid Gautreaux said Tuesday he is “very concerned” about missing teacher Sylviane Finck Lozada.

Detectives have not found anyone who has seen or heard from Lozada, 51, since July 11, according to a Sheriff’s Office release.

“We want to make sure that we carry out due diligence in processing all evidence and look for clues that can lead us to her,” Gautreaux said. “We are asking the public to please contact us if you have any information as to her whereabouts.”

Lozada, a Belgian citizen living and working in Baton Rouge as a teacher at Brusly High School, typically spoke with her family in Belgium on a daily basis, Sheriff’s Office spokeswoman Casey Rayborn Hicks has said. She has not contacted them since July 11.

Lozada’s husband and daughter have been in Venezuela since July 9, Hicks said.

Investigators are still processing Lozada’s yellow Xterra that was located Sunday at a friend’s house in Ascension Parish, Hicks said.

Detectives were looking for the vehicle because they suspected Lozada might have left her Baton Rouge home in it, Hicks said.

The discovery of the vehicle shows Lozada did not drive away in it, Hicks said.

Anyone with information about Lozada’s whereabouts is asked to contact the East Baton Rouge Sheriff’s Office at 225-389-5000 or Crime Stoppers anonymously at (225) 344-7867.