A collision involving an overturned vehicle and multiple injuries has shut down all northbound lanes of 280 near the 101 split in San Francisco Friday morning.

The collision happened around 8 a.m. as KPIX reports via the CHP. The severe traffic alert went out as of 8:40 a.m. and there's no estimate for when lanes may reopen.

Drivers are being told to find alternate route and avoid the area if possible.

There is no word yet on how many vehicles were involved or how many injuries occurred.

This post will be updated as that information comes in.