Update:

All lanes were reopened around 1:40 p.m.

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Original story:

According to Caltrans, a crash on westbound I-80 is causing traffic delays.

The crash happened near Alta.

At least one person has some minor injuries.

Crews were holding traffic for about an hour. As of 12:30 p.m., one lane has reopened.

Caltrans says traffic is still backed up to Blue Canyon and is moving slowly.

Expect delays if traveling through the area.