NEW YORK (CBSNEWS.COM) – A new report out Friday reveals some leafy greens recently sold at supermarkets were contaminated with a potentially deadly bacteria.

Consumer Reports says it tested nearly 284 samples of fresh greens like lettuce, spinach and kale and found six of those samples tainted with listeria.

READ MORE: 'My Nerves Are Still Rattled': Passenger Aboard Amtrak Train Talks Crash

A man shops for vegetables beside Romaine lettuce stocked and for sale at a supermarket. (credit: Frederic J. Brown/AFP/Getty Images)

READ MORE: Man, Pregnant Woman & Baby Killed In Crash Along Highway 360; Police Investigating

The contaminated samples included both pre-washed and unbagged greens.

MORE NEWS: Flash Flooding: Second Body Recovered After Vehicle Swept From Texas Bridge

◊◊◊ Click Here To Read The Complete Story On ◊◊◊