Some say they were unable to log in to one or both of the popular social media sites. others said they experienced a total blackout, according to downdetector.com.
Twitter has not experienced any outages, but users have tweeted about Facebook and Instagram.
No reason for the issues at either Facebook or Instagram have yet been given. Facebook acquired Instagram in 2012 for $1 billion.
Facebook founder Mark Zuckerberg is White Plains native who grew up in Dobbs Ferry and attended Ardsley High School.
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