A serious crash involving a car and a tractor-trailer truck on Tuesday morning has closed all lanes of westbound I-395 exiting Miami Beach.
The car is wedged under the truck on the MacArthur Causeway near Alton Road.
Eastbound traffic is slowed as rubber-neckers pass the crash, according to Miami Beach police.
Police have closed the Alton Road on-ramp.
Alternate routes across the bay to Miami include the Tuttle and Venetian causeways.