By Tom Coyne and John Flesher/Associated Press

COOPER TOWNSHIP, Mich. (AP) — A day trip in the southwestern Michigan countryside ended tragically for a group of bicyclists when a pickup truck plowed into them.

Five were killed and four injured in the Tuesday crash.

Stunned biking enthusiasts joined relatives and friends of the riders in mourning them the next day. They left flowers, a commemorative “ghost bike” and a small wooden cross at the scene and gathered for a 5-mile “silent ride.

The driver, a 50-year-old man who fled but was caught by police shortly afterward, remained in custody Wednesday.

County prosecutor Jeffrey S. Getting said he expected a report Thursday from the sheriff’s department and other agencies that would help determine whether charges would be filed.