Michigan State University Police announced Wednesday evening that a 31-year-old man was arrested for allegedly running a meth lab in Wells Hall.

Campus police said that suspect Xin Tong was arrested and faces felony criminal charges for malicious destruction of a building over $20,000 and “felony controlled substance-operate/maintain lab involving methamphetamine.”

Tong was arraigned earlier today and is being held at the Ingham County Jail on a $500,000 cash or surety bond.

MSU Police Chief Mike Yankowski, in a press conference Wednesday evening, said he could not comment on if Tong was a student or faculty member due to student privacy laws.

During this past week the campus police responded to reports of property damage inside Wells Hall, which was “directly related to alleged criminal activity.”

MSU Police made contact with Tong Sunday night on the fifth floor of Wells Hall after being dispatched for a trespassing complaint. MSU announced that the building would be closed on Monday morning.

Police said Tong was in possession of “of multiple substances that can be legally purchased in retail stores or online” including sodium hydroxide pellets, hydrochloric acid, methanol, isopropyl alcohol, acetone, and butane.

Yankowski said these substances were found in several bags in Tong’s possession when MSU Police made contact with him on Sunday. After getting a search warrant early Monday morning, police searched the bags and found “several labeled and unlabeled containers of an unknown liquid substance inside.”

“Due to the fact that they were unsure what those substances were, (officers) requested some additional public safety resources,” he added.

MSU then made the decision to shut down Wells Hall for the remainder of the day Monday to conduct a full search of the building and better assess the situation.