KIRKLAND, Wash. -

A Kirkland, Washington, company is voluntarily recalling about 20 containers of "basil pasta pesto" packed in 8 ounce plastic tubs because it could be contaminated with listeria.

Tjs Place says the pasta was sold between Aug. 18 and Aug. 21 in convenience stores, pharmacies, cafes and espresso stands in King and Snohomish counties in Washington state.

Listeria can cause serious and sometimes fatal infections in young children, frail or elderly adults and people with weakened immune systems.

The company says it is not aware of any reported illnesses from the pasta. The problem was discovered by the Washington State Department of Agriculture.

Tjs Place has suspended production and distribution of the product while agriculture officials and the company investigate the source of the problem.