UPDATE: Deputies have closed one eastbound lane and one westbound lane of Ulmerton Rd. All other lanes have been reopened.
An accident just after 10 a.m. shut down all westbound lanes and all but one eastbound lane of Ulmerton Rd. near Seminole Blvd. in Largo.
Pinellas County deputies are investigating.
Stay with abcactionnews.com as the story develops.