All lanes of southbound Highway 17 in the Santa Cruz Mountains reopened early Friday morning after an injury crash involving an overturned fuel tanker closed part of the roadway for nearly an entire day, officials said.

Shortly after 4:30 a.m., the Santa Cruz office of the California Hihgway Patrol said all southbound lanes near Sugarloaf Road near Scotts Valley were open.

According to a statement posted on the agency's Facebook page, the crash took place around 6:45 a.m. Thursday. Officers said a 70-year-old man from Salinas was driving the tanker truck, which was carrying one trailer and traveling at a speed that has not been determined.

The tanker truck collided with a guardrail. Following the initial crash, police said the truck left the roadway and collided with a dirt embankment before overturning. Fuel leaked from one of the trailers.

Officers said the driver sustained minor injuries and was taken to a local hospital. 

The crash led to the shutdown of all southbound lanes. Southbound traffic was diverted to the left lane of northbound 17, while the right lane was open for northbound traffic, causing major delays for thousands of commuters who rely on the road to travel from the Santa Cruz area to the Bay Area.

Alcohol or drugs are not believed to be factors, according to the CHP. The cause of the crash is still under investigation.