OAKLAND (CBS SF) -- An accident involving multiple vehicles on northbound I-880 in Oakland Saturday morning slowed traffic in the area for hours, according to reports.

The accident was first reported on I-880 northbound before 5th Avenue at around 8:15 a.m., according to social media posts. Initially all lanes were blocked and a sig-alert was issued.

One person claimed they saw a van swerve and hit a SUV, which lost control and hit the center divide. The witness said they saw airbags deployed.

A tweet by the KCBS Traffic Twitter account indicated that at around 9:12 a.m., the two left lanes were still blocked. Traffic was backed up to High Street.

According to reports, all lanes were cleared by around 10:30 a.m., over two hours after the initial crash. Drivers were advised to expect residual delays.