UPDATE - 2 p.m. Thursday: Traffic is now moving again after a crash on westbound I-4 near the Maitland Blvd exit.
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ORIGINAL STORY: A multi-vehicle crash is snarling traffic on westbound I-4.
Traffic is backed up to the Altamonte Drive exit, troopers said.
All westbound lanes were closed around 12:45 p.m. Thursday, Florida Highway Patrol said. FHP said the crash happened near the Maitland Boulevard exit.
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Images from FDOT cameras appear to show a tractor trailer at the scene of the crash.
Troopers and Maitland Police have not said how the crash happened or whether anyone was hurt.
This is a developing story. Stay with WFTV.com as we work to learn more information.