A fourth assault has been reported near Grand Valley State University.
Police say it occurred Tuesday night at about 10 p.m. near the Trio Townhouses - an off-campus apartment complex near GVSU's Allendale campus.
Grand Valley officials are urging students to check in with friends more frequently, participate in ride shares and walk in groups. A public forum is planned Thursday.
The Ottawa County sheriff's office is asking apartment managers to share any security video. Capt. Mark Bennett says it could show who is coming and going in the area.
Grand Valley police Chief Renee Freeman says her department is "very concerned" about the assaults.
A sexual assault near 48 West apartments was reported earlier this month. Two other cases by other off-campus complexes were reported in August.
The GVSU forum will be held Thursday at 5:30 p.m. at the Kirkhof Center. Organizers say the town hall-style event will provide an open space to talk about rape culture, campus safety and prevention.
Campus advocates will also be on-hand to talk with students.