Two Russian-linked Facebook accounts — one anti-immigrant and the other pro-Muslim — pitted Houston-area residents against each other prior to the 2016 election, Senate Intelligence Committee Chairman Richard Burr (R-N.C.) said Wednesday.

One group, titled "The Heart of Texas," promoted pro-Texas and anti-immigration messages with a tagline "Texas: Homeland of Guns, BBQ and ur heart!"

The other, titled "United Muslims of America," claimed to be pro-Islam, and had a tagline "I'm a Muslim and I'm proud."

The two groups placed advertisements on Facebook promoting events at the same time on May 21, 2016, near an Islamic community center. The ads were viewed by nearly 15,000 people combined, Burr said.

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