Police are investigating a pepper spray attack at a Walgreens in Vallejo. 

The incident happened around 4:30 p.m. at a location on Springs Rd. 

Authorities say a car drove up to the store and at least one person walked in and pepper sprayed a woman who works there. 

A second employee was hit with the spray while trying to help her.

Both employees were transported to a local hospital for further evaluation. 

KRON4’s Hermela Aregawi reports that in total 20 people, including customers, were sickened. 

Witnesses described a couple that was acting suspiciously right before the chaos. 

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