Production has halted on "The Colbert Report" for Wednesday and Thursday, according to fans who had tickets for the rest of the week's tapings.

Third Beat and Mediaite are reporting that audience members were informed late Tuesday night via email, "Due to unforeseen circumstances, we have cancelled our taping for the date of your ticket reservation, February 15, 2012." And ColbertNation.com has been updated with a rerun scheduled for Thursday night's episode.

PREVIOUSLY: So far, no explanation for the change in production schedule has been given, which has already led to much speculation. According to Third Beat: "The Daily Show has suspended production last-minute due to personal reasons twice during Jon Stewart’s reign: once when his second child was born, and once when a staff member passed away suddenly. If this week’s reasons are of a similar nature, it would be a first for the Colbert Report."

Many fans took to twitter late Wednesday night and Thursday morning after learning of the cancellations to express their hopes that the host and his family and staff were ok.

Colbert made a surprise drop-in on "Late Night With Jimmy Fallon" on Tuesday night and later tweeted a Valentine's message to his followers.

We will update this post as more information becomes available.