NEW ROCHELLE - Police are searching for a suspect who is still at large after two armed men held up a family at a busy parking lot in New Rochelle last night.

Officials say a mother, father and grandmother were robbed of their wallets, keys and jewelry in front of their young child outside the Costco on Industrial Lane.

Witness say they saw the thieves leave the scene in a red Dodge vehicle with Pennsylvania plates.

Police arrested one suspect whose identity has not yet been released, but the search continues for the second suspect. The person in custody is from New York City, police say.

Longtime Costco employee Stetson Simons says he was shocked to hear about the crime, especially because the store has undercover security.