The Internal Revenue Service is giving the owner of $840,000 in cash found during an Alamance County drug investigation one more month to claim their money.

The Times-News of Burlington reports (http://bit.ly/M2VQ72 ) the money was found in a storage unit in Graham in April.

The IRS has published notices in the newspaper saying anyone making a claim for the cash has until Aug. 21 or it will be forfeited to the federal government.

Investigators were eventually led to the storage unit after a traffic stop in 2010 found nearly $1.6 million in boxes in a trailer. The driver of the trailer said he was taking drug money back to Mexico.

Authorities also found ammunition in the storage unit that rented for $95 a month.