ALAMEDA  (AP) — Authorities are searching for two people suspected of exploding a firecracker inside a busy Northern California store to divert attention while stealing a shopping cart loaded with groceries.

KTVU-TV reports the blast on Thursday frightened shoppers and prompted a shutdown of the Safeway store in Alameda.

Police say a man threw the firecracker in the store’s refrigerated beer section, creating a diversion that allowed a woman to leave the store with the full cart.

No injuries reported.

Police say the thieves are between 25 and 35 years old and may have fled in a silver compact SUV.