NEW YORK ( TheStreet) -- Powerful storms pummeled the eastern U.S. on Friday evening, killing at least 12 people and knocking out power to more than 3 million people, according to the Associated Press.

The power outages are worrisome because they leave homes and businesses without air conditioning on a day of near-triple-digit temperatures. At midafternoon Saturday, it was 96 degrees in Washington.

As of Saturday afternoon, the storms were believed responsible for 12 deaths, according to the AP: six in Virginia; two in New Jersey; two in Maryland; one in Ohio; and one in Washington.

Workers were attempting to remove downed tree limbs and restore electricity in affected areas, the AP added.

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The loss of power also caused headaches for some businesses, as the Associated Press reported that Netflix ( NFLX), Instagram and Pinterest suffered server outages related to the storm.

All three companies rely on Amazon.com's ( AMZN) Web services unit.

This article was written by a staff member of TheStreet.