The Arizona State University Police Department has asked county prosecutors to charge four people with misdemeanors after a protest against U.S. Sen. Kyrsten Sinema earlier this month ended with an activist following her into a bathroom.

ASU police collaborated with Sen. Sinema’s office on the investigation.

Police spokesman Adam Wolfe said all four people allegedly committed disorderly conduct and disruption of an educational institution, which are both misdemeanors.

“It is unlawful to film and interrupt classes in protest in the hallways of ASU. It creates a dangerous situation where, if an emergency were to occur, people might not be able to get out of the class,” said Wolfe.

Wolfe says the ASU Police Department submitted the charges after a two-week investigation, but the final call on whether to charge the activists now rests with Maricopa County Attorney Allister Adel.

A representative from Maricopa County Attorne's Office says the office is still reviewing the case.