KNOXVILLE, Tenn. (AP) -- An illegal immigrant's third conviction in Tennessee may lead to his deportation.

Mario Roberto Diaz-Mourillo, a Honduran native who entered the United States illegally in 1998 and worked in construction in eastern Tennessee, was sentenced Tuesday to four years in prison for causing a head-on collision in the Great Smoky Mountains National Park.

Diaz-Mourillo was driving the wrong way down Highway 441 between Pigeon Forge and Gatlinburg and when the collision permanently injured Florida vacationers John Richard Clevelle and Mildred Margaret Lillard.

Prosecutors told a judge that Diaz-Mourillo was convicted of drunken driving, assaulting a police officer and weapons possession in 2004 and then drunken driving 10 days before last May's crash.

But his immigration status was never checked or ignored.

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Information from: The Knoxville News Sentinel, http://www.knoxnews.com

(Copyright 2008 by The Associated Press. All Rights Reserved.)