ST. PAUL, Minn. (AP) - Metro Transit is bracing for a plan by protesters to shut down a light-rail line in St. Paul before Sunday's Minnesota Vikings home opener.

Black Lives Matter St. Paul says they plan to block the Green Line at the Lexington Parkway station to protest what they consider excessive force by Metro Transit police officers who arrested a 17-year-old boy with autism there Aug. 31. The boy and his mother plan to attend the protest.

Metro Transit spokesman Howie Padilla says the incident remains under investigation.

The Green Line serves TCF Bank Stadium, where the Vikings will host Detroit. Gametime is noon.

Padilla says Metro Transit has successfully dealt with demonstrations before, but riders are advised to keep tabs on the situation and allow extra time for their trips Sunday morning.