A New Jersey girl is still missing after a mysterious tweet suggesting foul play went viral late Sunday evening.

16-year-old Kara Alongi has been missing for over 12 hours following a 6 pm tweet that said “There is someone in my hour ecall 911.” It’s assumed that Alongi meant that there was someone in her house.

Here’s the tweet:

According to police, Alongi’s parents have been made aware of the situation and the search continues for the girl. Police tell the Star-Ledger that there were no signs of foul play at Alongi’s house on Sunday night, and there’s no reason to think that she is in danger.

Apparently, Alongi was alone as her house on Sunday evening, as her family was away at a sporting event.

The chilling final message went viral on Twitter, as users created the #HelpFindKara hashtag. There’s also a #KaraIsFound hashtag, but police confirm that she is in fact, still missing.

Though many twitter users have tweeted their legitimate concern, some are questioning the validity of the “disappearance.” This image is going around, purportedly showing a tweet sent out by Alongi around 6 hours after the initial cryptic tweet. The tweet, if it really existed, has been deleted. Though some are touting this as proof that this is all a hoax, others are claiming that the image is photoshopped:

(image)

UPDATE: Police say that a cab driver told them that he picked Alongi up at her home and dropped her off at a train station around the time of the initial tweet.

This isn’t the first time we’ve seen tweets (possibly) mark the final moments before a crime. In August, a teen’s final tweets were used by police in her murder investigation.