OKLAHOMA CITY (AP) — Federal prosecutors are asking a judge to order a mental examination for a 19-year-old Oklahoma man accused of sexually abusing children at an orphanage in Kenya.

U.S. Attorney Sanford Coats filed a request this week seeking a mental evaluation for Matthew Durham, who has been indicted on three felony counts that accuse him of traveling from Oklahoma City to Kenya to sexually abuse children at the Upendo Children’s Home.

Prosecutors allege that Durham admitted abusing the children, but defense attorneys have challenged the credibility of their client’s statement, saying he was coerced.

The request for the mental exam says prosecutors need to know whether Durham was insane at the time of the alleged offenses and if he can stand trial, which is set for next month but may be delayed.

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