Male hikers are being told to be on the alert for a group of men who may be responsible for two separate incidents of sexual assault on hiking trails in Santa Rosa. As KRON 4 reports, the first victim reported being held at knife point on the Paulin Creek Trail in mid-May and was then sexually assaulted by three men.

A second man was assaulted, possibly by the same three suspects, days later on May 24, according to the Santa Rosa Press Democrat. The second incident, in which the suspects were apparently unarmed, happened on the Joe Rodota Trail between Hampton Way and Stony Point Road.

Both incidents happened during evening hours, between 8 p.m. and 3 a.m. according to Santa Rosa police. It's unclear if the victims in these cases were cruising for sex at the time of their assaults, or if these are known cruising areas, though a quick scan of Craigslist m4m and Casual Encounters ads shows no mentions of either location.

The Joe Rodota Trail was the site of a stabbing earlier this year in which a 43-year-old man was stabbed, allegedly following a fight over a bicycle with another man, as the Press-Democrat reported.

The 8.5-mile trail is paved and runs from Santa Rosa to Sebastopol along an abandoned railroad line, and is popular with bicyclists and equestrians in the daytime.

The Santa Rosa Police Department’s Domestic Violence and Sexual Assault Unit is seeking information about these incidents, and they can be reached at 707-543-3595. A $2,500 reward is being offered for information leading to the capture of these assailants.