Well this is odd.

WSVN anchor Robbin Simmons tweeted out a video of red flashing lights from inside the White House at 8:30pm EST Sunday.

Red lights flashing at the White House. What's going on? We're checking on it . @wsvn pic.twitter.com/8UncIP9uGB

Breaking 911 reports:

What appeared to be flashing red lights appeared from the second floor of the White House Sunday evening.

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Livestream webcams showed the strange sight—the flashing stopped after about 20 minutes.

There was no official statement from the US Secret Service or The White House.