UPDATE: The accident was caused by a semi-truck that crashed into the median, blocking all lanes of southbound traffic, according to West Pierce Fire & Rescue. A motor home and sedan hit the semi after it struck the median.
Two people were taken to the hospital, one with serious injuries, said Capt. Jenny Weekes.
UPDATE as of 3:37 p.m.: All lanes are cleared, but a 9 mile backup on southbound I-5 remains, according to WSDOT. There is also a 10 mile back up between Marvin Road and Berkeley on northbound I-5, because of the distraction, WSDOT officials said.
UPDATE as of …