The Subway logo is seen on takeout boxes at a restaurant in Londonderry, N.H. The sandwich chain says it will be sold to the private equity firm Roark Capital. Terms of the deal weren't disclosed.
This aerial picture shows tanks used for storing treated water at the crippled Fukushima nuclear power plant. Japan began releasing wastewater from the plant into the Pacific Ocean on Thursday despite angry opposition from China and local fishermen.
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A listeria bacterium seen under an electron microscope. Listeria is not typically life-threatening, but those over 65, pregnant or with compromised immune systems are deemed high-risk when exposed to the bacteria.