Posting this here because even though the thread was made towards MSU athletics, the article does mention tomorrow's game. U-M officials are aware of the contents of a letter received by MSU. I don't think there's much other information out there right now. I know there's definitely some people living in the EL-area, so be safe.
The East Lansing and Michigan State University police departments have received letters making general threats against MSU athletic events. The letters do not provide specific information in regards to the event or manner of the threat.
The MSU football team is scheduled to play the University of Michigan on Saturday night in Ann Arbor. U-of-M officials are aware of the information disclosed by police about the threats, spokeswoman Diane Brown said in an email.