OMAHA, Neb. -- The owner of an Omaha restaurant was sentenced this week to two years in federal prison for allowing employees to sell cocaine.

48-year old Ismael Zambrano-Tirado will also have to serve one year of supervised release.

The FBI Investigated Zambrano-Tirado's restaurant El Catrin for almost two years for a suspected drug trafficking ring.

FBI informants say they bought cocaine inside the restaurant while Zambrano-Tirado was present.

Authorities say a search of his home uncovered over 13-thousand dollars in cash.

Six others have been convicted of cocaine distribution related to the investigation.