The truck veered over the side of the transition road from the eastbound 134 Freeway to the southbound 2 Freeway at about 3:30 a.m., said California Highway Patrol Officer Jennifer Cassidy. The No. 4 lane on the southbound 2 Freeway was also closed as crews worked to clear the wreckage, the Los Angeles Times reports.
Television news footage showed the driver of the truck limping away with the help of paramedics. He was taken to a hospital.
Firefighters, meanwhile, are "considering it a haz-mat spill," Cassidy said.
The quantity of milk spilled was not immediately known.
-- Ari Bloomekatz, Los Angeles Times