I-5 southbound in Linn County closed due to snow and numerous accidents involving over 20 vehicles.

Interstate 5 southbound was closed about 3 miles north of Albany just after 8:30 Thursday morning after several crashes involving up to 20 total vehicles were reported on the snowy freeway, transportation officials said.

Just after that, official said I-5 northbound was closed 8 miles south of Albany when another pileup was reported.

For the southbound crash, a detour was in place using Old Salem Road for all but overweight vehicles, according to a statement from the Oregon Department of Transportation.

The detour for the northbound crash had not been put in place as of 9 a.m.

Drivers were advised to avoid the area or expect major delays.

Chains or snow tires are now required on I-5 in Linn County.

ODOT crews were also responding to several other crashes on I-5, as well as on Oregon Highway 58, and U.S. Highway 101.