(Terre Haute, IN) - A police officer in Terre Haute was shot and killed in what authorities have dubbed an ambush.

The incident happened Wednesday around 2:15 p.m. outside an FBI office in Terre Haute.  The officer involved has been identified as Detective Greg Ferency, a 30-year veteran of the Terre Haute Police Department.

Reports indicate Ferency was assigned to an FBI task force there.  Authorities say he was shot and killed ambush-style.  An FBI agent shot and wounded the assailant, who is in custody following surgery.