Black Lives Matter is preparing for a light-rail “shut down” protest ahead of the Vikings home opener at TCF Bank Stadium on Sunday morning, the Star Tribune reports.

On Thursday, the group announced their “#BlackRail” protest on their Facebook page. According to the Pioneer Press, The group will gather near the Lexington Parkway station to interrupt light-rail service starting at 9:30 a.m.

The group says that they chose Sunday morning because the Vikings’ home opener is a “big money day” to disrupt “business as usual.”

KARE11 news reports that the protest is for Marcus Abrams, a 17-year-old who lives with autism that was allegedly assaulted by Metro Police on August 31st.

“As a community, we all know that autism is not a crime, but Marcus Abrams’ beating is a clear indication that criminal justice reform is a must. Come out and let your voice be heard in support of Marcus Abrams,” the group said on Facebook.

According to the group’s Facebook page, Abrams and his mother will be attending the protest to talk about issues such as autism and police brutality.